Prefer node_modules At.js and jquery.carat versions

Remove references to the vendored copies of At.js and jquery.carat
as well as the legacy rails wrapper gem.

11 files changed, 19 insertions, 1649 deletions

diff --git a/Gemfile b/Gemfile
index 37a1c783f37..9a220ad2996 100644
--- a/Gemfile
+++ b/Gemfile
@@ -265,7 +265,6 @@ gem 'addressable', '~> 2.5.2'
 gem 'font-awesome-rails', '~> 4.7'
 gem 'gemojione', '~> 3.3'
 gem 'gon', '~> 6.2'
-gem 'jquery-atwho-rails', '~> 1.3.2'
 gem 'request_store', '~> 1.3'
 gem 'virtus', '~> 1.0.1'
 gem 'base32', '~> 0.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 1e59e0d56a3..f0f9b523a3b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -398,7 +398,6 @@ GEM
       activesupport
       multipart-post
       oauth (~> 0.5, >= 0.5.0)
-    jquery-atwho-rails (1.3.2)
     js_regex (3.1.1)
       character_set (~> 1.1)
       regexp_parser (~> 1.1)
@@ -1046,7 +1045,6 @@ DEPENDENCIES
   influxdb (~> 0.2)
   jaeger-client (~> 0.10.0)
   jira-ruby (~> 1.4)
-  jquery-atwho-rails (~> 1.3.2)
   js_regex (~> 3.1)
   json-schema (~> 2.8.0)
   jwt (~> 2.1.0)
diff --git a/app/assets/javascripts/commons/jquery.js b/app/assets/javascripts/commons/jquery.js
index 009153d0703..2f268419bff 100644
--- a/app/assets/javascripts/commons/jquery.js
+++ b/app/assets/javascripts/commons/jquery.js
@@ -3,7 +3,7 @@ import 'jquery';
 // common jQuery plugins
 import 'jquery-ujs';
 import 'vendor/jquery.endless-scroll';
-import 'vendor/jquery.caret';
-import 'vendor/jquery.atwho';
+import 'jquery.caret'; // must be imported before at.js
+import 'at.js';
 import 'vendor/jquery.scrollTo';
 import 'jquery.waitforimages';
diff --git a/app/assets/javascripts/notes.js b/app/assets/javascripts/notes.js
index c9c01354333..94d2e2b53e9 100644
--- a/app/assets/javascripts/notes.js
+++ b/app/assets/javascripts/notes.js
@@ -11,8 +11,8 @@ import $ from 'jquery';
 import _ from 'underscore';
 import Cookies from 'js-cookie';
 import Autosize from 'autosize';
-import 'vendor/jquery.caret'; // required by jquery.atwho
-import 'vendor/jquery.atwho';
+import 'jquery.caret'; // required by at.js
+import 'at.js';
 import AjaxCache from '~/lib/utils/ajax_cache';
 import Vue from 'vue';
 import syntaxHighlight from '~/syntax_highlight';
diff --git a/app/assets/stylesheets/application.scss b/app/assets/stylesheets/application.scss
index d1cf2b8f9a0..86189143525 100644
--- a/app/assets/stylesheets/application.scss
+++ b/app/assets/stylesheets/application.scss
@@ -2,7 +2,6 @@
  * This is a manifest file that'll automatically include all the stylesheets available in this directory
  * and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
  * the top of the compiled file, but it's generally better to create a new file per style scope.
- *= require jquery.atwho
  *= require_self
  *= require cropper.css
 */
@@ -15,6 +14,7 @@
  * directory.
  */
 
+@import "../../../node_modules/at.js/dist/css/jquery.atwho";
 @import "../../../node_modules/pikaday/scss/pikaday";
 @import "../../../node_modules/dropzone/dist/basic";
 @import "../../../node_modules/select2/select2";
diff --git a/package.json b/package.json
index 60b3203741e..7d14ccc5a5e 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
     "@gitlab/ui": "^2.2.3",
     "apollo-boost": "^0.3.1",
     "apollo-client": "^2.5.1",
+    "at.js": "^1.5.4",
     "autosize": "^4.0.0",
     "axios": "^0.17.1",
     "babel-loader": "^8.0.5",
@@ -75,6 +76,7 @@
     "jest-transform-graphql": "^2.1.0",
     "jquery": "^3.2.1",
     "jquery-ujs": "1.2.2",
+    "jquery.caret": "^0.3.1",
     "jquery.waitforimages": "^2.2.0",
     "js-cookie": "^2.1.3",
     "jszip": "^3.1.3",
diff --git a/spec/frontend/gfm_auto_complete_spec.js b/spec/frontend/gfm_auto_complete_spec.js
index c7008c780d6..27c679c749b 100644
--- a/spec/frontend/gfm_auto_complete_spec.js
+++ b/spec/frontend/gfm_auto_complete_spec.js
@@ -3,8 +3,8 @@
 import $ from 'jquery';
 import GfmAutoComplete from '~/gfm_auto_complete';
 
-import 'vendor/jquery.caret';
-import 'vendor/jquery.atwho';
+import 'jquery.caret';
+import 'at.js';
 
 describe('GfmAutoComplete', () => {
   const gfmAutoCompleteCallbacks = GfmAutoComplete.prototype.getDefaultCallbacks.call({
diff --git a/vendor/assets/javascripts/jquery.atwho.js b/vendor/assets/javascripts/jquery.atwho.js
deleted file mode 100644
index e058e13303a..00000000000
--- a/vendor/assets/javascripts/jquery.atwho.js
+++ /dev/null
@@ -1,1202 +0,0 @@
-/**
- * at.js - 1.5.1
- * Copyright (c) 2016 chord.luo <chord.luo@gmail.com>;
- * Homepage: http://ichord.github.com/At.js
- * License: MIT
- */
-(function (root, factory) {
-  if (typeof define === 'function' && define.amd) {
-    // AMD. Register as an anonymous module unless amdModuleId is set
-    define(["jquery"], function (a0) {
-      return (factory(a0));
-    });
-  } else if (typeof exports === 'object') {
-    // Node. Does not work with strict CommonJS, but
-    // only CommonJS-like environments that support module.exports,
-    // like Node.
-    module.exports = factory(require("jquery"));
-  } else {
-    factory(jQuery);
-  }
-}(this, function ($) {
-var DEFAULT_CALLBACKS, KEY_CODE;
-
-KEY_CODE = {
-  DOWN: 40,
-  UP: 38,
-  ESC: 27,
-  TAB: 9,
-  ENTER: 13,
-  CTRL: 17,
-  A: 65,
-  P: 80,
-  N: 78,
-  LEFT: 37,
-  UP: 38,
-  RIGHT: 39,
-  DOWN: 40,
-  BACKSPACE: 8,
-  SPACE: 32
-};
-
-DEFAULT_CALLBACKS = {
-  beforeSave: function(data) {
-    return Controller.arrayToDefaultHash(data);
-  },
-  matcher: function(flag, subtext, should_startWithSpace, acceptSpaceBar) {
-    var _a, _y, match, regexp, space;
-    flag = flag.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
-    if (should_startWithSpace) {
-      flag = '(?:^|\\s)' + flag;
-    }
-    _a = decodeURI("%C3%80");
-    _y = decodeURI("%C3%BF");
-    space = acceptSpaceBar ? "\ " : "";
-    regexp = new RegExp(flag + "([A-Za-z" + _a + "-" + _y + "0-9_" + space + "\'\.\+\-]*)$|" + flag + "([^\\x00-\\xff]*)$", 'gi');
-    match = regexp.exec(subtext);
-    if (match) {
-      return match[2] || match[1];
-    } else {
-      return null;
-    }
-  },
-  filter: function(query, data, searchKey) {
-    var _results, i, item, len;
-    _results = [];
-    for (i = 0, len = data.length; i < len; i++) {
-      item = data[i];
-      if (~new String(item[searchKey]).toLowerCase().indexOf(query.toLowerCase())) {
-        _results.push(item);
-      }
-    }
-    return _results;
-  },
-  remoteFilter: null,
-  sorter: function(query, items, searchKey) {
-    var _results, i, item, len;
-    if (!query) {
-      return items;
-    }
-    _results = [];
-    for (i = 0, len = items.length; i < len; i++) {
-      item = items[i];
-      item.atwho_order = new String(item[searchKey]).toLowerCase().indexOf(query.toLowerCase());
-      if (item.atwho_order > -1) {
-        _results.push(item);
-      }
-    }
-    return _results.sort(function(a, b) {
-      return a.atwho_order - b.atwho_order;
-    });
-  },
-  tplEval: function(tpl, map) {
-    var error, error1, template;
-    template = tpl;
-    try {
-      if (typeof tpl !== 'string') {
-        template = tpl(map);
-      }
-      return template.replace(/\$\{([^\}]*)\}/g, function(tag, key, pos) {
-        return map[key];
-      });
-    } catch (error1) {
-      error = error1;
-      return "";
-    }
-  },
-  highlighter: function(li, query) {
-    var regexp;
-    if (!query) {
-      return li;
-    }
-    regexp = new RegExp(">\\s*(\\w*?)(" + query.replace("+", "\\+") + ")(\\w*)\\s*<", 'ig');
-    return li.replace(regexp, function(str, $1, $2, $3) {
-      return '> ' + $1 + '<strong>' + $2 + '</strong>' + $3 + ' <';
-    });
-  },
-  beforeInsert: function(value, $li, e) {
-    return value;
-  },
-  beforeReposition: function(offset) {
-    return offset;
-  },
-  afterMatchFailed: function(at, el) {}
-};
-
-var App;
-
-App = (function() {
-  function App(inputor) {
-    this.currentFlag = null;
-    this.controllers = {};
-    this.aliasMaps = {};
-    this.$inputor = $(inputor);
-    this.setupRootElement();
-    this.listen();
-  }
-
-  App.prototype.createContainer = function(doc) {
-    var ref;
-    if ((ref = this.$el) != null) {
-      ref.remove();
-    }
-    return $(doc.body).append(this.$el = $("<div class='atwho-container'></div>"));
-  };
-
-  App.prototype.setupRootElement = function(iframe, asRoot) {
-    var error, error1;
-    if (asRoot == null) {
-      asRoot = false;
-    }
-    if (iframe) {
-      this.window = iframe.contentWindow;
-      this.document = iframe.contentDocument || this.window.document;
-      this.iframe = iframe;
-    } else {
-      this.document = this.$inputor[0].ownerDocument;
-      this.window = this.document.defaultView || this.document.parentWindow;
-      try {
-        this.iframe = this.window.frameElement;
-      } catch (error1) {
-        error = error1;
-        this.iframe = null;
-        if ($.fn.atwho.debug) {
-          throw new Error("iframe auto-discovery is failed.\nPlease use `setIframe` to set the target iframe manually.\n" + error);
-        }
-      }
-    }
-    return this.createContainer((this.iframeAsRoot = asRoot) ? this.document : document);
-  };
-
-  App.prototype.controller = function(at) {
-    var c, current, currentFlag, ref;
-    if (this.aliasMaps[at]) {
-      current = this.controllers[this.aliasMaps[at]];
-    } else {
-      ref = this.controllers;
-      for (currentFlag in ref) {
-        c = ref[currentFlag];
-        if (currentFlag === at) {
-          current = c;
-          break;
-        }
-      }
-    }
-    if (current) {
-      return current;
-    } else {
-      return this.controllers[this.currentFlag];
-    }
-  };
-
-  App.prototype.setContextFor = function(at) {
-    this.currentFlag = at;
-    return this;
-  };
-
-  App.prototype.reg = function(flag, setting) {
-    var base, controller;
-    controller = (base = this.controllers)[flag] || (base[flag] = this.$inputor.is('[contentEditable]') ? new EditableController(this, flag) : new TextareaController(this, flag));
-    if (setting.alias) {
-      this.aliasMaps[setting.alias] = flag;
-    }
-    controller.init(setting);
-    return this;
-  };
-
-  App.prototype.listen = function() {
-    return this.$inputor.on('compositionstart', (function(_this) {
-      return function(e) {
-        var ref;
-        if ((ref = _this.controller()) != null) {
-          ref.view.hide();
-        }
-        _this.isComposing = true;
-        return null;
-      };
-    })(this)).on('compositionend', (function(_this) {
-      return function(e) {
-        _this.isComposing = false;
-        setTimeout(function(e) {
-          return _this.dispatch(e);
-        });
-        return null;
-      };
-    })(this)).on('keyup.atwhoInner', (function(_this) {
-      return function(e) {
-        return _this.onKeyup(e);
-      };
-    })(this)).on('keydown.atwhoInner', (function(_this) {
-      return function(e) {
-        return _this.onKeydown(e);
-      };
-    })(this)).on('blur.atwhoInner', (function(_this) {
-      return function(e) {
-        var c;
-        if (c = _this.controller()) {
-          c.expectedQueryCBId = null;
-          return c.view.hide(e, c.getOpt("displayTimeout"));
-        }
-      };
-    })(this)).on('click.atwhoInner', (function(_this) {
-      return function(e) {
-        return _this.dispatch(e);
-      };
-    })(this)).on('scroll.atwhoInner', (function(_this) {
-      return function() {
-        var lastScrollTop;
-        lastScrollTop = _this.$inputor.scrollTop();
-        return function(e) {
-          var currentScrollTop, ref;
-          currentScrollTop = e.target.scrollTop;
-          if (lastScrollTop !== currentScrollTop) {
-            if ((ref = _this.controller()) != null) {
-              ref.view.hide(e);
-            }
-          }
-          lastScrollTop = currentScrollTop;
-          return true;
-        };
-      };
-    })(this)());
-  };
-
-  App.prototype.shutdown = function() {
-    var _, c, ref;
-    ref = this.controllers;
-    for (_ in ref) {
-      c = ref[_];
-      c.destroy();
-      delete this.controllers[_];
-    }
-    this.$inputor.off('.atwhoInner');
-    return this.$el.remove();
-  };
-
-  App.prototype.dispatch = function(e) {
-    var _, c, ref, results;
-    ref = this.controllers;
-    results = [];
-    for (_ in ref) {
-      c = ref[_];
-      results.push(c.lookUp(e));
-    }
-    return results;
-  };
-
-  App.prototype.onKeyup = function(e) {
-    var ref;
-    switch (e.keyCode) {
-      case KEY_CODE.ESC:
-        e.preventDefault();
-        if ((ref = this.controller()) != null) {
-          ref.view.hide();
-        }
-        break;
-      case KEY_CODE.DOWN:
-      case KEY_CODE.UP:
-      case KEY_CODE.CTRL:
-      case KEY_CODE.ENTER:
-        $.noop();
-        break;
-      case KEY_CODE.P:
-      case KEY_CODE.N:
-        if (!e.ctrlKey) {
-          this.dispatch(e);
-        }
-        break;
-      default:
-        this.dispatch(e);
-    }
-  };
-
-  App.prototype.onKeydown = function(e) {
-    var ref, view;
-    view = (ref = this.controller()) != null ? ref.view : void 0;
-    if (!(view && view.visible())) {
-      return;
-    }
-    switch (e.keyCode) {
-      case KEY_CODE.ESC:
-        e.preventDefault();
-        view.hide(e);
-        break;
-      case KEY_CODE.UP:
-        e.preventDefault();
-        view.prev();
-        break;
-      case KEY_CODE.DOWN:
-        e.preventDefault();
-        view.next();
-        break;
-      case KEY_CODE.P:
-        if (!e.ctrlKey) {
-          return;
-        }
-        e.preventDefault();
-        view.prev();
-        break;
-      case KEY_CODE.N:
-        if (!e.ctrlKey) {
-          return;
-        }
-        e.preventDefault();
-        view.next();
-        break;
-      case KEY_CODE.TAB:
-      case KEY_CODE.ENTER:
-      case KEY_CODE.SPACE:
-        if (!view.visible()) {
-          return;
-        }
-        if (!this.controller().getOpt('spaceSelectsMatch') && e.keyCode === KEY_CODE.SPACE) {
-          return;
-        }
-        if (!this.controller().getOpt('tabSelectsMatch') && e.keyCode === KEY_CODE.TAB) {
-          return;
-        }
-        if (view.highlighted()) {
-          e.preventDefault();
-          view.choose(e);
-        } else {
-          view.hide(e);
-        }
-        break;
-      default:
-        $.noop();
-    }
-  };
-
-  return App;
-
-})();
-
-var Controller,
-  slice = [].slice;
-
-Controller = (function() {
-  Controller.prototype.uid = function() {
-    return (Math.random().toString(16) + "000000000").substr(2, 8) + (new Date().getTime());
-  };
-
-  function Controller(app, at1) {
-    this.app = app;
-    this.at = at1;
-    this.$inputor = this.app.$inputor;
-    this.id = this.$inputor[0].id || this.uid();
-    this.expectedQueryCBId = null;
-    this.setting = null;
-    this.query = null;
-    this.pos = 0;
-    this.range = null;
-    if ((this.$el = $("#atwho-ground-" + this.id, this.app.$el)).length === 0) {
-      this.app.$el.append(this.$el = $("<div id='atwho-ground-" + this.id + "'></div>"));
-    }
-    this.model = new Model(this);
-    this.view = new View(this);
-  }
-
-  Controller.prototype.init = function(setting) {
-    this.setting = $.extend({}, this.setting || $.fn.atwho["default"], setting);
-    this.view.init();
-    return this.model.reload(this.setting.data);
-  };
-
-  Controller.prototype.destroy = function() {
-    this.trigger('beforeDestroy');
-    this.model.destroy();
-    this.view.destroy();
-    return this.$el.remove();
-  };
-
-  Controller.prototype.callDefault = function() {
-    var args, error, error1, funcName;
-    funcName = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
-    try {
-      return DEFAULT_CALLBACKS[funcName].apply(this, args);
-    } catch (error1) {
-      error = error1;
-      return $.error(error + " Or maybe At.js doesn't have function " + funcName);
-    }
-  };
-
-  Controller.prototype.trigger = function(name, data) {
-    var alias, eventName;
-    if (data == null) {
-      data = [];
-    }
-    data.push(this);
-    alias = this.getOpt('alias');
-    eventName = alias ? name + "-" + alias + ".atwho" : name + ".atwho";
-    return this.$inputor.trigger(eventName, data);
-  };
-
-  Controller.prototype.callbacks = function(funcName) {
-    return this.getOpt("callbacks")[funcName] || DEFAULT_CALLBACKS[funcName];
-  };
-
-  Controller.prototype.getOpt = function(at, default_value) {
-    var e, error1;
-    try {
-      return this.setting[at];
-    } catch (error1) {
-      e = error1;
-      return null;
-    }
-  };
-
-  Controller.prototype.insertContentFor = function($li) {
-    var data, tpl;
-    tpl = this.getOpt('insertTpl');
-    data = $.extend({}, $li.data('itemData'), {
-      'atwho-at': this.at
-    });
-    return this.callbacks("tplEval").call(this, tpl, data, "onInsert");
-  };
-
-  Controller.prototype.renderView = function(data) {
-    var searchKey;
-    searchKey = this.getOpt("searchKey");
-    data = this.callbacks("sorter").call(this, this.query.text, data.slice(0, 1001), searchKey);
-    return this.view.render(data.slice(0, this.getOpt('limit')));
-  };
-
-  Controller.arrayToDefaultHash = function(data) {
-    var i, item, len, results;
-    if (!$.isArray(data)) {
-      return data;
-    }
-    results = [];
-    for (i = 0, len = data.length; i < len; i++) {
-      item = data[i];
-      if ($.isPlainObject(item)) {
-        results.push(item);
-      } else {
-        results.push({
-          name: item
-        });
-      }
-    }
-    return results;
-  };
-
-  Controller.prototype.lookUp = function(e) {
-    var query, wait;
-    if (e && e.type === 'click' && !this.getOpt('lookUpOnClick')) {
-      return;
-    }
-    if (this.getOpt('suspendOnComposing') && this.app.isComposing) {
-      return;
-    }
-    query = this.catchQuery(e);
-    if (!query) {
-      this.expectedQueryCBId = null;
-      return query;
-    }
-    this.app.setContextFor(this.at);
-    if (wait = this.getOpt('delay')) {
-      this._delayLookUp(query, wait);
-    } else {
-      this._lookUp(query);
-    }
-    return query;
-  };
-
-  Controller.prototype._delayLookUp = function(query, wait) {
-    var now, remaining;
-    now = Date.now ? Date.now() : new Date().getTime();
-    this.previousCallTime || (this.previousCallTime = now);
-    remaining = wait - (now - this.previousCallTime);
-    if ((0 < remaining && remaining < wait)) {
-      this.previousCallTime = now;
-      this._stopDelayedCall();
-      return this.delayedCallTimeout = setTimeout((function(_this) {
-        return function() {
-          _this.previousCallTime = 0;
-          _this.delayedCallTimeout = null;
-          return _this._lookUp(query);
-        };
-      })(this), wait);
-    } else {
-      this._stopDelayedCall();
-      if (this.previousCallTime !== now) {
-        this.previousCallTime = 0;
-      }
-      return this._lookUp(query);
-    }
-  };
-
-  Controller.prototype._stopDelayedCall = function() {
-    if (this.delayedCallTimeout) {
-      clearTimeout(this.delayedCallTimeout);
-      return this.delayedCallTimeout = null;
-    }
-  };
-
-  Controller.prototype._generateQueryCBId = function() {
-    return {};
-  };
-
-  Controller.prototype._lookUp = function(query) {
-    var _callback;
-    _callback = function(queryCBId, data) {
-      if (queryCBId !== this.expectedQueryCBId) {
-        return;
-      }
-      if (data && data.length > 0) {
-        return this.renderView(this.constructor.arrayToDefaultHash(data));
-      } else {
-        return this.view.hide();
-      }
-    };
-    this.expectedQueryCBId = this._generateQueryCBId();
-    return this.model.query(query.text, $.proxy(_callback, this, this.expectedQueryCBId));
-  };
-
-  return Controller;
-
-})();
-
-var TextareaController,
-  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-  hasProp = {}.hasOwnProperty;
-
-TextareaController = (function(superClass) {
-  extend(TextareaController, superClass);
-
-  function TextareaController() {
-    return TextareaController.__super__.constructor.apply(this, arguments);
-  }
-
-  TextareaController.prototype.catchQuery = function() {
-    var caretPos, content, end, isString, query, start, subtext;
-    content = this.$inputor.val();
-    caretPos = this.$inputor.caret('pos', {
-      iframe: this.app.iframe
-    });
-    subtext = content.slice(0, caretPos);
-    query = this.callbacks("matcher").call(this, this.at, subtext, this.getOpt('startWithSpace'), this.getOpt("acceptSpaceBar"));
-    isString = typeof query === 'string';
-    if (isString && query.length < this.getOpt('minLen', 0)) {
-      return;
-    }
-    if (isString && query.length <= this.getOpt('maxLen', 20)) {
-      start = caretPos - query.length;
-      end = start + query.length;
-      this.pos = start;
-      query = {
-        'text': query,
-        'headPos': start,
-        'endPos': end
-      };
-      this.trigger("matched", [this.at, query.text]);
-    } else {
-      query = null;
-      this.view.hide();
-    }
-    return this.query = query;
-  };
-
-  TextareaController.prototype.rect = function() {
-    var c, iframeOffset, scaleBottom;
-    if (!(c = this.$inputor.caret('offset', this.pos - 1, {
-      iframe: this.app.iframe
-    }))) {
-      return;
-    }
-    if (this.app.iframe && !this.app.iframeAsRoot) {
-      iframeOffset = $(this.app.iframe).offset();
-      c.left += iframeOffset.left;
-      c.top += iframeOffset.top;
-    }
-    scaleBottom = this.app.document.selection ? 0 : 2;
-    return {
-      left: c.left,
-      top: c.top,
-      bottom: c.top + c.height + scaleBottom
-    };
-  };
-
-  TextareaController.prototype.insert = function(content, $li) {
-    var $inputor, source, startStr, suffix, text;
-    $inputor = this.$inputor;
-    source = $inputor.val();
-    startStr = source.slice(0, Math.max(this.query.headPos - this.at.length, 0));
-    suffix = (suffix = this.getOpt('suffix')) === "" ? suffix : suffix || " ";
-    content += suffix;
-    text = "" + startStr + content + (source.slice(this.query['endPos'] || 0));
-    $inputor.val(text);
-    $inputor.caret('pos', startStr.length + content.length, {
-      iframe: this.app.iframe
-    });
-    if (!$inputor.is(':focus')) {
-      $inputor.focus();
-    }
-    return $inputor.change();
-  };
-
-  return TextareaController;
-
-})(Controller);
-
-var EditableController,
-  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-  hasProp = {}.hasOwnProperty;
-
-EditableController = (function(superClass) {
-  extend(EditableController, superClass);
-
-  function EditableController() {
-    return EditableController.__super__.constructor.apply(this, arguments);
-  }
-
-  EditableController.prototype._getRange = function() {
-    var sel;
-    sel = this.app.window.getSelection();
-    if (sel.rangeCount > 0) {
-      return sel.getRangeAt(0);
-    }
-  };
-
-  EditableController.prototype._setRange = function(position, node, range) {
-    if (range == null) {
-      range = this._getRange();
-    }
-    if (!range) {
-      return;
-    }
-    node = $(node)[0];
-    if (position === 'after') {
-      range.setEndAfter(node);
-      range.setStartAfter(node);
-    } else {
-      range.setEndBefore(node);
-      range.setStartBefore(node);
-    }
-    range.collapse(false);
-    return this._clearRange(range);
-  };
-
-  EditableController.prototype._clearRange = function(range) {
-    var sel;
-    if (range == null) {
-      range = this._getRange();
-    }
-    sel = this.app.window.getSelection();
-    if (this.ctrl_a_pressed == null) {
-      sel.removeAllRanges();
-      return sel.addRange(range);
-    }
-  };
-
-  EditableController.prototype._movingEvent = function(e) {
-    var ref;
-    return e.type === 'click' || ((ref = e.which) === KEY_CODE.RIGHT || ref === KEY_CODE.LEFT || ref === KEY_CODE.UP || ref === KEY_CODE.DOWN);
-  };
-
-  EditableController.prototype._unwrap = function(node) {
-    var next;
-    node = $(node).unwrap().get(0);
-    if ((next = node.nextSibling) && next.nodeValue) {
-      node.nodeValue += next.nodeValue;
-      $(next).remove();
-    }
-    return node;
-  };
-
-  EditableController.prototype.catchQuery = function(e) {
-    var $inserted, $query, _range, index, inserted, isString, lastNode, matched, offset, query, query_content, range;
-    if (!(range = this._getRange())) {
-      return;
-    }
-    if (!range.collapsed) {
-      return;
-    }
-    if (e.which === KEY_CODE.ENTER) {
-      ($query = $(range.startContainer).closest('.atwho-query')).contents().unwrap();
-      if ($query.is(':empty')) {
-        $query.remove();
-      }
-      ($query = $(".atwho-query", this.app.document)).text($query.text()).contents().last().unwrap();
-      this._clearRange();
-      return;
-    }
-    if (/firefox/i.test(navigator.userAgent)) {
-      if ($(range.startContainer).is(this.$inputor)) {
-        this._clearRange();
-        return;
-      }
-      if (e.which === KEY_CODE.BACKSPACE && range.startContainer.nodeType === document.ELEMENT_NODE && (offset = range.startOffset - 1) >= 0) {
-        _range = range.cloneRange();
-        _range.setStart(range.startContainer, offset);
-        if ($(_range.cloneContents()).contents().last().is('.atwho-inserted')) {
-          inserted = $(range.startContainer).contents().get(offset);
-          this._setRange('after', $(inserted).contents().last());
-        }
-      } else if (e.which === KEY_CODE.LEFT && range.startContainer.nodeType === document.TEXT_NODE) {
-        $inserted = $(range.startContainer.previousSibling);
-        if ($inserted.is('.atwho-inserted') && range.startOffset === 0) {
-          this._setRange('after', $inserted.contents().last());
-        }
-      }
-    }
-    $(range.startContainer).closest('.atwho-inserted').addClass('atwho-query').siblings().removeClass('atwho-query');
-    if (($query = $(".atwho-query", this.app.document)).length > 0 && $query.is(':empty') && $query.text().length === 0) {
-      $query.remove();
-    }
-    if (!this._movingEvent(e)) {
-      $query.removeClass('atwho-inserted');
-    }
-    if ($query.length > 0) {
-      switch (e.which) {
-        case KEY_CODE.LEFT:
-          this._setRange('before', $query.get(0), range);
-          $query.removeClass('atwho-query');
-          return;
-        case KEY_CODE.RIGHT:
-          this._setRange('after', $query.get(0).nextSibling, range);
-          $query.removeClass('atwho-query');
-          return;
-      }
-    }
-    if ($query.length > 0 && (query_content = $query.attr('data-atwho-at-query'))) {
-      $query.empty().html(query_content).attr('data-atwho-at-query', null);
-      this._setRange('after', $query.get(0), range);
-    }
-    _range = range.cloneRange();
-    _range.setStart(range.startContainer, 0);
-    matched = this.callbacks("matcher").call(this, this.at, _range.toString(), this.getOpt('startWithSpace'), this.getOpt("acceptSpaceBar"));
-    isString = typeof matched === 'string';
-    if ($query.length === 0 && isString && (index = range.startOffset - this.at.length - matched.length) >= 0) {
-      range.setStart(range.startContainer, index);
-      $query = $('<span/>', this.app.document).attr(this.getOpt("editableAtwhoQueryAttrs")).addClass('atwho-query');
-      range.surroundContents($query.get(0));
-      lastNode = $query.contents().last().get(0);
-      if (/firefox/i.test(navigator.userAgent)) {
-        range.setStart(lastNode, lastNode.length);
-        range.setEnd(lastNode, lastNode.length);
-        this._clearRange(range);
-      } else {
-        this._setRange('after', lastNode, range);
-      }
-    }
-    if (isString && matched.length < this.getOpt('minLen', 0)) {
-      return;
-    }
-    if (isString && matched.length <= this.getOpt('maxLen', 20)) {
-      query = {
-        text: matched,
-        el: $query
-      };
-      this.trigger("matched", [this.at, query.text]);
-      return this.query = query;
-    } else {
-      this.view.hide();
-      this.query = {
-        el: $query
-      };
-      if ($query.text().indexOf(this.at) >= 0) {
-        if (this._movingEvent(e) && $query.hasClass('atwho-inserted')) {
-          $query.removeClass('atwho-query');
-        } else if (false !== this.callbacks('afterMatchFailed').call(this, this.at, $query)) {
-          this._setRange("after", this._unwrap($query.text($query.text()).contents().first()));
-        }
-      }
-      return null;
-    }
-  };
-
-  EditableController.prototype.rect = function() {
-    var $iframe, iframeOffset, rect;
-    rect = this.query.el.offset();
-    if (this.app.iframe && !this.app.iframeAsRoot) {
-      iframeOffset = ($iframe = $(this.app.iframe)).offset();
-      rect.left += iframeOffset.left - this.$inputor.scrollLeft();
-      rect.top += iframeOffset.top - this.$inputor.scrollTop();
-    }
-    rect.bottom = rect.top + this.query.el.height();
-    return rect;
-  };
-
-  EditableController.prototype.insert = function(content, $li) {
-    var data, range, suffix, suffixNode;
-    if (!this.$inputor.is(':focus')) {
-      this.$inputor.focus();
-    }
-    suffix = (suffix = this.getOpt('suffix')) === "" ? suffix : suffix || "\u00A0";
-    data = $li.data('itemData');
-    this.query.el.removeClass('atwho-query').addClass('atwho-inserted').html(content).attr('data-atwho-at-query', "" + data['atwho-at'] + this.query.text);
-    if (range = this._getRange()) {
-      range.setEndAfter(this.query.el[0]);
-      range.collapse(false);
-      range.insertNode(suffixNode = this.app.document.createTextNode("\u200D" + suffix));
-      this._setRange('after', suffixNode, range);
-    }
-    if (!this.$inputor.is(':focus')) {
-      this.$inputor.focus();
-    }
-    return this.$inputor.change();
-  };
-
-  return EditableController;
-
-})(Controller);
-
-var Model;
-
-Model = (function() {
-  function Model(context) {
-    this.context = context;
-    this.at = this.context.at;
-    this.storage = this.context.$inputor;
-  }
-
-  Model.prototype.destroy = function() {
-    return this.storage.data(this.at, null);
-  };
-
-  Model.prototype.saved = function() {
-    return this.fetch() > 0;
-  };
-
-  Model.prototype.query = function(query, callback) {
-    var _remoteFilter, data, searchKey;
-    data = this.fetch();
-    searchKey = this.context.getOpt("searchKey");
-    data = this.context.callbacks('filter').call(this.context, query, data, searchKey) || [];
-    _remoteFilter = this.context.callbacks('remoteFilter');
-    if (data.length > 0 || (!_remoteFilter && data.length === 0)) {
-      return callback(data);
-    } else {
-      return _remoteFilter.call(this.context, query, callback);
-    }
-  };
-
-  Model.prototype.fetch = function() {
-    return this.storage.data(this.at) || [];
-  };
-
-  Model.prototype.save = function(data) {
-    return this.storage.data(this.at, this.context.callbacks("beforeSave").call(this.context, data || []));
-  };
-
-  Model.prototype.load = function(data) {
-    if (!(this.saved() || !data)) {
-      return this._load(data);
-    }
-  };
-
-  Model.prototype.reload = function(data) {
-    return this._load(data);
-  };
-
-  Model.prototype._load = function(data) {
-    if (typeof data === "string") {
-      return $.ajax(data, {
-        dataType: "json"
-      }).done((function(_this) {
-        return function(data) {
-          return _this.save(data);
-        };
-      })(this));
-    } else {
-      return this.save(data);
-    }
-  };
-
-  return Model;
-
-})();
-
-var View;
-
-View = (function() {
-  function View(context) {
-    this.context = context;
-    this.$el = $("<div class='atwho-view'><ul class='atwho-view-ul'></ul></div>");
-    this.$elUl = this.$el.children();
-    this.timeoutID = null;
-    this.context.$el.append(this.$el);
-    this.bindEvent();
-  }
-
-  View.prototype.init = function() {
-    var header_tpl, id;
-    id = this.context.getOpt("alias") || this.context.at.charCodeAt(0);
-    header_tpl = this.context.getOpt("headerTpl");
-    if (header_tpl && this.$el.children().length === 1) {
-      this.$el.prepend(header_tpl);
-    }
-    return this.$el.attr({
-      'id': "at-view-" + id
-    });
-  };
-
-  View.prototype.destroy = function() {
-    return this.$el.remove();
-  };
-
-  View.prototype.bindEvent = function() {
-    var $menu, lastCoordX, lastCoordY;
-    $menu = this.$el.find('ul');
-    lastCoordX = 0;
-    lastCoordY = 0;
-    return $menu.on('mousemove.atwho-view', 'li', (function(_this) {
-      return function(e) {
-        var $cur;
-        if (lastCoordX === e.clientX && lastCoordY === e.clientY) {
-          return;
-        }
-        lastCoordX = e.clientX;
-        lastCoordY = e.clientY;
-        $cur = $(e.currentTarget);
-        if ($cur.hasClass('cur')) {
-          return;
-        }
-        $menu.find('.cur').removeClass('cur');
-        return $cur.addClass('cur');
-      };
-    })(this)).on('click.atwho-view', 'li', (function(_this) {
-      return function(e) {
-        $menu.find('.cur').removeClass('cur');
-        $(e.currentTarget).addClass('cur');
-        _this.choose(e);
-        return e.preventDefault();
-      };
-    })(this));
-  };
-
-  View.prototype.visible = function() {
-    return this.$el.is(":visible");
-  };
-
-  View.prototype.highlighted = function() {
-    return this.$el.find(".cur").length > 0;
-  };
-
-  View.prototype.choose = function(e) {
-    var $li, content;
-    if (($li = this.$el.find(".cur")).length) {
-      content = this.context.insertContentFor($li);
-      this.context._stopDelayedCall();
-      this.context.insert(this.context.callbacks("beforeInsert").call(this.context, content, $li, e), $li);
-      this.context.trigger("inserted", [$li, e]);
-      this.hide(e);
-    }
-    if (this.context.getOpt("hideWithoutSuffix")) {
-      return this.stopShowing = true;
-    }
-  };
-
-  View.prototype.reposition = function(rect) {
-    var _window, offset, overflowOffset, ref;
-    _window = this.context.app.iframeAsRoot ? this.context.app.window : window;
-    if (rect.bottom + this.$el.height() - $(_window).scrollTop() > $(_window).height()) {
-      rect.bottom = rect.top - this.$el.height();
-    }
-    if (rect.left > (overflowOffset = $(_window).width() - this.$el.width() - 5)) {
-      rect.left = overflowOffset;
-    }
-    offset = {
-      left: rect.left,
-      top: rect.bottom
-    };
-    if ((ref = this.context.callbacks("beforeReposition")) != null) {
-      ref.call(this.context, offset);
-    }
-    this.$el.offset(offset);
-    return this.context.trigger("reposition", [offset]);
-  };
-
-  View.prototype.next = function() {
-    var cur, next, nextEl, offset;
-    cur = this.$el.find('.cur').removeClass('cur');
-    next = cur.next();
-    if (!next.length) {
-      next = this.$el.find('li:first');
-    }
-    next.addClass('cur');
-    nextEl = next[0];
-    offset = nextEl.offsetTop + nextEl.offsetHeight + (nextEl.nextSibling ? nextEl.nextSibling.offsetHeight : 0);
-    return this.scrollTop(Math.max(0, offset - this.$el.height()));
-  };
-
-  View.prototype.prev = function() {
-    var cur, offset, prev, prevEl;
-    cur = this.$el.find('.cur').removeClass('cur');
-    prev = cur.prev();
-    if (!prev.length) {
-      prev = this.$el.find('li:last');
-    }
-    prev.addClass('cur');
-    prevEl = prev[0];
-    offset = prevEl.offsetTop + prevEl.offsetHeight + (prevEl.nextSibling ? prevEl.nextSibling.offsetHeight : 0);
-    return this.scrollTop(Math.max(0, offset - this.$el.height()));
-  };
-
-  View.prototype.scrollTop = function(scrollTop) {
-    var scrollDuration;
-    scrollDuration = this.context.getOpt('scrollDuration');
-    if (scrollDuration) {
-      return this.$elUl.animate({
-        scrollTop: scrollTop
-      }, scrollDuration);
-    } else {
-      return this.$elUl.scrollTop(scrollTop);
-    }
-  };
-
-  View.prototype.show = function() {
-    var rect;
-    if (this.stopShowing) {
-      this.stopShowing = false;
-      return;
-    }
-    if (!this.visible()) {
-      this.$el.show();
-      this.$el.scrollTop(0);
-      this.context.trigger('shown');
-    }
-    if (rect = this.context.rect()) {
-      return this.reposition(rect);
-    }
-  };
-
-  View.prototype.hide = function(e, time) {
-    var callback;
-    if (!this.visible()) {
-      return;
-    }
-    if (isNaN(time)) {
-      this.$el.hide();
-      return this.context.trigger('hidden', [e]);
-    } else {
-      callback = (function(_this) {
-        return function() {
-          return _this.hide();
-        };
-      })(this);
-      clearTimeout(this.timeoutID);
-      return this.timeoutID = setTimeout(callback, time);
-    }
-  };
-
-  View.prototype.render = function(list) {
-    var $li, $ul, i, item, len, li, tpl;
-    if (!($.isArray(list) && list.length > 0)) {
-      this.hide();
-      return;
-    }
-    this.$el.find('ul').empty();
-    $ul = this.$el.find('ul');
-    tpl = this.context.getOpt('displayTpl');
-    for (i = 0, len = list.length; i < len; i++) {
-      item = list[i];
-      item = $.extend({}, item, {
-        'atwho-at': this.context.at
-      });
-      li = this.context.callbacks("tplEval").call(this.context, tpl, item, "onDisplay");
-      $li = $(this.context.callbacks("highlighter").call(this.context, li, this.context.query.text));
-      $li.data("item-data", item);
-      $ul.append($li);
-    }
-    this.show();
-    if (this.context.getOpt('highlightFirst')) {
-      return $ul.find("li:first").addClass("cur");
-    }
-  };
-
-  return View;
-
-})();
-
-var Api;
-
-Api = {
-  load: function(at, data) {
-    var c;
-    if (c = this.controller(at)) {
-      return c.model.load(data);
-    }
-  },
-  isSelecting: function() {
-    var ref;
-    return !!((ref = this.controller()) != null ? ref.view.visible() : void 0);
-  },
-  hide: function() {
-    var ref;
-    return (ref = this.controller()) != null ? ref.view.hide() : void 0;
-  },
-  reposition: function() {
-    var c;
-    if (c = this.controller()) {
-      return c.view.reposition(c.rect());
-    }
-  },
-  setIframe: function(iframe, asRoot) {
-    this.setupRootElement(iframe, asRoot);
-    return null;
-  },
-  run: function() {
-    return this.dispatch();
-  },
-  destroy: function() {
-    this.shutdown();
-    return this.$inputor.data('atwho', null);
-  }
-};
-
-$.fn.atwho = function(method) {
-  var _args, result;
-  _args = arguments;
-  result = null;
-  this.filter('textarea, input, [contenteditable=""], [contenteditable=true]').each(function() {
-    var $this, app;
-    if (!(app = ($this = $(this)).data("atwho"))) {
-      $this.data('atwho', (app = new App(this)));
-    }
-    if (typeof method === 'object' || !method) {
-      return app.reg(method.at, method);
-    } else if (Api[method] && app) {
-      return result = Api[method].apply(app, Array.prototype.slice.call(_args, 1));
-    } else {
-      return $.error("Method " + method + " does not exist on jQuery.atwho");
-    }
-  });
-  if (result != null) {
-    return result;
-  } else {
-    return this;
-  }
-};
-
-$.fn.atwho["default"] = {
-  at: void 0,
-  alias: void 0,
-  data: null,
-  displayTpl: "<li>${name}</li>",
-  insertTpl: "${atwho-at}${name}",
-  headerTpl: null,
-  callbacks: DEFAULT_CALLBACKS,
-  searchKey: "name",
-  suffix: void 0,
-  hideWithoutSuffix: false,
-  startWithSpace: true,
-  acceptSpaceBar: false,
-  highlightFirst: true,
-  limit: 5,
-  maxLen: 20,
-  minLen: 0,
-  displayTimeout: 300,
-  delay: null,
-  spaceSelectsMatch: false,
-  tabSelectsMatch: true,
-  editableAtwhoQueryAttrs: {},
-  scrollDuration: 150,
-  suspendOnComposing: true,
-  lookUpOnClick: true
-};
-
-$.fn.atwho.debug = false;
-
-}));
diff --git a/vendor/assets/javascripts/jquery.caret.js b/vendor/assets/javascripts/jquery.caret.js
deleted file mode 100644
index 811ec63ee47..00000000000
--- a/vendor/assets/javascripts/jquery.caret.js
+++ /dev/null
@@ -1,436 +0,0 @@
-(function (root, factory) {
-  if (typeof define === 'function' && define.amd) {
-    // AMD. Register as an anonymous module.
-    define(["jquery"], function ($) {
-      return (root.returnExportsGlobal = factory($));
-    });
-  } else if (typeof exports === 'object') {
-    // Node. Does not work with strict CommonJS, but
-    // only CommonJS-like enviroments that support module.exports,
-    // like Node.
-    module.exports = factory(require("jquery"));
-  } else {
-    factory(jQuery);
-  }
-}(this, function ($) {
-
-/*
-  Implement Github like autocomplete mentions
-  http://ichord.github.com/At.js
-
-  Copyright (c) 2013 chord.luo@gmail.com
-  Licensed under the MIT license.
-*/
-
-/*
-本插件操作 textarea 或者 input 内的插入符
-只实现了获得插入符在文本框中的位置，我设置
-插入符的位置.
-*/
-
-"use strict";
-var EditableCaret, InputCaret, Mirror, Utils, discoveryIframeOf, methods, oDocument, oFrame, oWindow, pluginName, setContextBy;
-
-pluginName = 'caret';
-
-EditableCaret = (function() {
-  function EditableCaret($inputor) {
-    this.$inputor = $inputor;
-    this.domInputor = this.$inputor[0];
-  }
-
-  EditableCaret.prototype.setPos = function(pos) {
-    var fn, found, offset, sel;
-    if (sel = oWindow.getSelection()) {
-      offset = 0;
-      found = false;
-      (fn = function(pos, parent) {
-        var node, range, _i, _len, _ref, _results;
-        _ref = parent.childNodes;
-        _results = [];
-        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-          node = _ref[_i];
-          if (found) {
-            break;
-          }
-          if (node.nodeType === 3) {
-            if (offset + node.length >= pos) {
-              found = true;
-              range = oDocument.createRange();
-              range.setStart(node, pos - offset);
-              sel.removeAllRanges();
-              sel.addRange(range);
-              break;
-            } else {
-              _results.push(offset += node.length);
-            }
-          } else {
-            _results.push(fn(pos, node));
-          }
-        }
-        return _results;
-      })(pos, this.domInputor);
-    }
-    return this.domInputor;
-  };
-
-  EditableCaret.prototype.getIEPosition = function() {
-    return this.getPosition();
-  };
-
-  EditableCaret.prototype.getPosition = function() {
-    var inputor_offset, offset;
-    offset = this.getOffset();
-    inputor_offset = this.$inputor.offset();
-    offset.left -= inputor_offset.left;
-    offset.top -= inputor_offset.top;
-    return offset;
-  };
-
-  EditableCaret.prototype.getOldIEPos = function() {
-    var preCaretTextRange, textRange;
-    textRange = oDocument.selection.createRange();
-    preCaretTextRange = oDocument.body.createTextRange();
-    preCaretTextRange.moveToElementText(this.domInputor);
-    preCaretTextRange.setEndPoint("EndToEnd", textRange);
-    return preCaretTextRange.text.length;
-  };
-
-  EditableCaret.prototype.getPos = function() {
-    var clonedRange, pos, range;
-    if (range = this.range()) {
-      clonedRange = range.cloneRange();
-      clonedRange.selectNodeContents(this.domInputor);
-      clonedRange.setEnd(range.endContainer, range.endOffset);
-      pos = clonedRange.toString().length;
-      clonedRange.detach();
-      return pos;
-    } else if (oDocument.selection) {
-      return this.getOldIEPos();
-    }
-  };
-
-  EditableCaret.prototype.getOldIEOffset = function() {
-    var range, rect;
-    range = oDocument.selection.createRange().duplicate();
-    range.moveStart("character", -1);
-    rect = range.getBoundingClientRect();
-    return {
-      height: rect.bottom - rect.top,
-      left: rect.left,
-      top: rect.top
-    };
-  };
-
-  EditableCaret.prototype.getOffset = function(pos) {
-    var clonedRange, offset, range, rect, shadowCaret;
-    if (oWindow.getSelection && (range = this.range())) {
-      if (range.endOffset - 1 > 0 && range.endContainer !== this.domInputor) {
-        clonedRange = range.cloneRange();
-        clonedRange.setStart(range.endContainer, range.endOffset - 1);
-        clonedRange.setEnd(range.endContainer, range.endOffset);
-        rect = clonedRange.getBoundingClientRect();
-        offset = {
-          height: rect.height,
-          left: rect.left + rect.width,
-          top: rect.top
-        };
-        clonedRange.detach();
-      }
-      if (!offset || (offset != null ? offset.height : void 0) === 0) {
-        clonedRange = range.cloneRange();
-        shadowCaret = $(oDocument.createTextNode("|"));
-        clonedRange.insertNode(shadowCaret[0]);
-        clonedRange.selectNode(shadowCaret[0]);
-        rect = clonedRange.getBoundingClientRect();
-        offset = {
-          height: rect.height,
-          left: rect.left,
-          top: rect.top
-        };
-        shadowCaret.remove();
-        clonedRange.detach();
-      }
-    } else if (oDocument.selection) {
-      offset = this.getOldIEOffset();
-    }
-    if (offset) {
-      offset.top += $(oWindow).scrollTop();
-      offset.left += $(oWindow).scrollLeft();
-    }
-    return offset;
-  };
-
-  EditableCaret.prototype.range = function() {
-    var sel;
-    if (!oWindow.getSelection) {
-      return;
-    }
-    sel = oWindow.getSelection();
-    if (sel.rangeCount > 0) {
-      return sel.getRangeAt(0);
-    } else {
-      return null;
-    }
-  };
-
-  return EditableCaret;
-
-})();
-
-InputCaret = (function() {
-  function InputCaret($inputor) {
-    this.$inputor = $inputor;
-    this.domInputor = this.$inputor[0];
-  }
-
-  InputCaret.prototype.getIEPos = function() {
-    var endRange, inputor, len, normalizedValue, pos, range, textInputRange;
-    inputor = this.domInputor;
-    range = oDocument.selection.createRange();
-    pos = 0;
-    if (range && range.parentElement() === inputor) {
-      normalizedValue = inputor.value.replace(/\r\n/g, "\n");
-      len = normalizedValue.length;
-      textInputRange = inputor.createTextRange();
-      textInputRange.moveToBookmark(range.getBookmark());
-      endRange = inputor.createTextRange();
-      endRange.collapse(false);
-      if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
-        pos = len;
-      } else {
-        pos = -textInputRange.moveStart("character", -len);
-      }
-    }
-    return pos;
-  };
-
-  InputCaret.prototype.getPos = function() {
-    if (oDocument.selection) {
-      return this.getIEPos();
-    } else {
-      return this.domInputor.selectionStart;
-    }
-  };
-
-  InputCaret.prototype.setPos = function(pos) {
-    var inputor, range;
-    inputor = this.domInputor;
-    if (oDocument.selection) {
-      range = inputor.createTextRange();
-      range.move("character", pos);
-      range.select();
-    } else if (inputor.setSelectionRange) {
-      inputor.setSelectionRange(pos, pos);
-    }
-    return inputor;
-  };
-
-  InputCaret.prototype.getIEOffset = function(pos) {
-    var h, textRange, x, y;
-    textRange = this.domInputor.createTextRange();
-    pos || (pos = this.getPos());
-    textRange.move('character', pos);
-    x = textRange.boundingLeft;
-    y = textRange.boundingTop;
-    h = textRange.boundingHeight;
-    return {
-      left: x,
-      top: y,
-      height: h
-    };
-  };
-
-  InputCaret.prototype.getOffset = function(pos) {
-    var $inputor, offset, position;
-    $inputor = this.$inputor;
-    if (oDocument.selection) {
-      offset = this.getIEOffset(pos);
-      offset.top += $(oWindow).scrollTop() + $inputor.scrollTop();
-      offset.left += $(oWindow).scrollLeft() + $inputor.scrollLeft();
-      return offset;
-    } else {
-      offset = $inputor.offset();
-      position = this.getPosition(pos);
-      return offset = {
-        left: offset.left + position.left - $inputor.scrollLeft(),
-        top: offset.top + position.top - $inputor.scrollTop(),
-        height: position.height
-      };
-    }
-  };
-
-  InputCaret.prototype.getPosition = function(pos) {
-    var $inputor, at_rect, end_range, format, html, mirror, start_range;
-    $inputor = this.$inputor;
-    format = function(value) {
-      value = value.replace(/<|>|`|"|&/g, '?').replace(/\r\n|\r|\n/g, "<br/>");
-      if (/firefox/i.test(navigator.userAgent)) {
-        value = value.replace(/\s/g, '&nbsp;');
-      }
-      return value;
-    };
-    if (pos === void 0) {
-      pos = this.getPos();
-    }
-    start_range = $inputor.val().slice(0, pos);
-    end_range = $inputor.val().slice(pos);
-    html = "<span style='position: relative; display: inline;'>" + format(start_range) + "</span>";
-    html += "<span id='caret' style='position: relative; display: inline;'>|</span>";
-    html += "<span style='position: relative; display: inline;'>" + format(end_range) + "</span>";
-    mirror = new Mirror($inputor);
-    return at_rect = mirror.create(html).rect();
-  };
-
-  InputCaret.prototype.getIEPosition = function(pos) {
-    var h, inputorOffset, offset, x, y;
-    offset = this.getIEOffset(pos);
-    inputorOffset = this.$inputor.offset();
-    x = offset.left - inputorOffset.left;
-    y = offset.top - inputorOffset.top;
-    h = offset.height;
-    return {
-      left: x,
-      top: y,
-      height: h
-    };
-  };
-
-  return InputCaret;
-
-})();
-
-Mirror = (function() {
-  Mirror.prototype.css_attr = ["borderBottomWidth", "borderLeftWidth", "borderRightWidth", "borderTopStyle", "borderRightStyle", "borderBottomStyle", "borderLeftStyle", "borderTopWidth", "boxSizing", "fontFamily", "fontSize", "fontWeight", "height", "letterSpacing", "lineHeight", "marginBottom", "marginLeft", "marginRight", "marginTop", "outlineWidth", "overflow", "overflowX", "overflowY", "paddingBottom", "paddingLeft", "paddingRight", "paddingTop", "textAlign", "textOverflow", "textTransform", "whiteSpace", "wordBreak", "wordWrap"];
-
-  function Mirror($inputor) {
-    this.$inputor = $inputor;
-  }
-
-  Mirror.prototype.mirrorCss = function() {
-    var css,
-      _this = this;
-    css = {
-      position: 'absolute',
-      left: -9999,
-      top: 0,
-      zIndex: -20000
-    };
-    if (this.$inputor.prop('tagName') === 'TEXTAREA') {
-      this.css_attr.push('width');
-    }
-    $.each(this.css_attr, function(i, p) {
-      return css[p] = _this.$inputor.css(p);
-    });
-    return css;
-  };
-
-  Mirror.prototype.create = function(html) {
-    this.$mirror = $('<div></div>');
-    this.$mirror.css(this.mirrorCss());
-    this.$mirror.html(html);
-    this.$inputor.after(this.$mirror);
-    return this;
-  };
-
-  Mirror.prototype.rect = function() {
-    var $flag, pos, rect;
-    $flag = this.$mirror.find("#caret");
-    pos = $flag.position();
-    rect = {
-      left: pos.left,
-      top: pos.top,
-      height: $flag.height()
-    };
-    this.$mirror.remove();
-    return rect;
-  };
-
-  return Mirror;
-
-})();
-
-Utils = {
-  contentEditable: function($inputor) {
-    return !!($inputor[0].contentEditable && $inputor[0].contentEditable === 'true');
-  }
-};
-
-methods = {
-  pos: function(pos) {
-    if (pos || pos === 0) {
-      return this.setPos(pos);
-    } else {
-      return this.getPos();
-    }
-  },
-  position: function(pos) {
-    if (oDocument.selection) {
-      return this.getIEPosition(pos);
-    } else {
-      return this.getPosition(pos);
-    }
-  },
-  offset: function(pos) {
-    var offset;
-    offset = this.getOffset(pos);
-    return offset;
-  }
-};
-
-oDocument = null;
-
-oWindow = null;
-
-oFrame = null;
-
-setContextBy = function(settings) {
-  var iframe;
-  if (iframe = settings != null ? settings.iframe : void 0) {
-    oFrame = iframe;
-    oWindow = iframe.contentWindow;
-    return oDocument = iframe.contentDocument || oWindow.document;
-  } else {
-    oFrame = void 0;
-    oWindow = window;
-    return oDocument = document;
-  }
-};
-
-discoveryIframeOf = function($dom) {
-  var error;
-  oDocument = $dom[0].ownerDocument;
-  oWindow = oDocument.defaultView || oDocument.parentWindow;
-  try {
-    return oFrame = oWindow.frameElement;
-  } catch (_error) {
-    error = _error;
-  }
-};
-
-$.fn.caret = function(method, value, settings) {
-  var caret;
-  if (methods[method]) {
-    if ($.isPlainObject(value)) {
-      setContextBy(value);
-      value = void 0;
-    } else {
-      setContextBy(settings);
-    }
-    caret = Utils.contentEditable(this) ? new EditableCaret(this) : new InputCaret(this);
-    return methods[method].apply(caret, [value]);
-  } else {
-    return $.error("Method " + method + " does not exist on jQuery.caret");
-  }
-};
-
-$.fn.caret.EditableCaret = EditableCaret;
-
-$.fn.caret.InputCaret = InputCaret;
-
-$.fn.caret.Utils = Utils;
-
-$.fn.caret.apis = methods;
-
-
-}));
diff --git a/vendor/licenses.csv b/vendor/licenses.csv
index ed79ec5bac3..de6e32cb998 100644
--- a/vendor/licenses.csv
+++ b/vendor/licenses.csv
@@ -606,7 +606,6 @@ iterall,1.2.2,MIT
 jed,1.1.1,MIT
 jira-ruby,1.4.1,MIT
 jquery,3.3.1,MIT
-jquery-atwho-rails,1.3.2,MIT
 jquery-ujs,1.2.2,MIT
 jquery.waitforimages,2.2.0,MIT
 js-beautify,1.8.8,MIT
diff --git a/yarn.lock b/yarn.lock
index 4456810ec43..dbd56b387ba 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1378,6 +1378,11 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
 
+at.js@^1.5.4:
+  version "1.5.4"
+  resolved "https://registry.yarnpkg.com/at.js/-/at.js-1.5.4.tgz#8fc60cc80eadbe4874449b166a818e7ae1d784c1"
+  integrity sha512-G8mgUb/PqShPoH8AyjuxsTGvIr1o716BtQUKDM44C8qN2W615y7KGJ68MlTGamd0J0D/m28emUkzagaHTdrGZw==
+
 atob@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
@@ -6070,6 +6075,11 @@ jquery-ujs@1.2.2:
   dependencies:
     jquery ">=1.8.0"
 
+jquery.caret@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/jquery.caret/-/jquery.caret-0.3.1.tgz#9c093318faf327eff322e826ca9f3241368bc7b8"
+  integrity sha1-nAkzGPrzJ+/zIugmyp8yQTaLx7g=
+
 jquery.waitforimages@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/jquery.waitforimages/-/jquery.waitforimages-2.2.0.tgz#63f23131055a1b060dc913e6d874bcc9b9e6b16b"