Merge branch 'jquery2' into 'master'

Upgraded jQuery to version 2

## What does this MR do?

Upgrades jQuery to 2.2.1. 

Had to include the task_list JS file directly as it includes jQuery 1 directly https://github.com/github-archive/task_list/blob/master/app/assets/javascripts/task_list.coffee#L8 so when we change jQuery to `jquery2` it was including both jQuery 1 & 2.

## Are there points in the code the reviewer needs to double check?

For any JS errors

## What are the relevant issue numbers?

Closes #12440

See merge request !4384

2 files changed, 8 insertions, 12 deletions

diff --git a/spec/features/issues_spec.rb b/spec/features/issues_spec.rb
index a4eed5031c9..460d7f82b36 100644
--- a/spec/features/issues_spec.rb
+++ b/spec/features/issues_spec.rb
@@ -365,13 +365,9 @@ describe 'Issues', feature: true do
 
         page.within('.assignee') do
           expect(page).to have_content "#{@user.name}"
-        end
 
-        find('.block.assignee .edit-link').click
-        sleep 2 # wait for ajax stuff to complete
-        first('.dropdown-menu-user-link').click
-        sleep 2
-        page.within('.assignee') do
+          click_link 'Edit'
+          click_link 'Unassigned'
           expect(page).to have_content 'No assignee'
         end
 
diff --git a/spec/javascripts/graphs/stat_graph_contributors_util_spec.js b/spec/javascripts/graphs/stat_graph_contributors_util_spec.js
index 5b992447473..56970e22e34 100644
--- a/spec/javascripts/graphs/stat_graph_contributors_util_spec.js
+++ b/spec/javascripts/graphs/stat_graph_contributors_util_spec.js
@@ -9,14 +9,14 @@ describe("ContributorsStatGraphUtil", function () {
             {author_email: "dzaporozhets@email.com", author_name: "Dmitriy Zaporozhets", date: "2013-05-08", additions: 6, deletions: 1},
             {author_email: "dzaporozhets@email.com", author_name: "Dmitriy Zaporozhets", date: "2013-05-08", additions: 19, deletions: 3},
             {author_email: "dzaporozhets@email.com", author_name: "Dmitriy Zaporozhets", date: "2013-05-08", additions: 29, deletions: 3}]
-      
+
       var correct_parsed_log = {
         total: [
         {date: "2013-05-09", additions: 471, deletions: 0, commits: 1},
         {date: "2013-05-08", additions: 54, deletions: 7, commits: 3}],
         by_author:
         [
-        { 
+        {
           author_name: "Karlo Soriano", author_email: "karlo@email.com",
           "2013-05-09": {date: "2013-05-09", additions: 471, deletions: 0, commits: 1}
         },
@@ -132,8 +132,8 @@ describe("ContributorsStatGraphUtil", function () {
       total: [{date: "2013-05-09", additions: 471, deletions: 0, commits: 1},
       {date: "2013-05-08", additions: 54, deletions: 7, commits: 3}],
       by_author:[
-      { 
-        author: "Karlo Soriano", 
+      {
+        author: "Karlo Soriano",
         "2013-05-09": {date: "2013-05-09", additions: 471, deletions: 0, commits: 1}
       },
       {
@@ -161,11 +161,11 @@ describe("ContributorsStatGraphUtil", function () {
     it("returns the log by author sorted by specified field", function () {
       var fake_parsed_log = {
         total: [
-          {date: "2013-05-09", additions: 471, deletions: 0, commits: 1}, 
+          {date: "2013-05-09", additions: 471, deletions: 0, commits: 1},
           {date: "2013-05-08", additions: 54, deletions: 7, commits: 3}
         ],
         by_author: [
-          { 
+          {
             author_name: "Karlo Soriano", author_email: "karlo@email.com",
             "2013-05-09": {date: "2013-05-09", additions: 471, deletions: 0, commits: 1}
           },