ES6-ify codebase (#1553)

* cancelable foreach

* cancelable waterfall

* cancellable auto

* fix lint

* fix tests

* cancelable whilst/until/during/forever

* fix waterfall test.  It WILL get there

* docs

* use rest params instead of slice

* clean up internals

* remove property func

* clarify uses of createTester

* happy path async funtions in asyncify

* stop using arguments

* DLL to class

* moar arrows

* fix merge issues

* remove forOwn

* moar arrows

* fix merge mistake

* even more arrows, what can stop him

* mo more fn.apply(null,...)

* remove more spurious uses of apply

* update lint config

* just when you thought there couldn't possibly be more arrows

* use eslint:recommended

* even less uses or aguments

* get rid of prototype cuteness

* fix concat tests

* fix more tests

1 files changed, 4 insertions, 6 deletions

diff --git a/perf/memory.js b/perf/memory.js
index 1edab20..d4a71e9 100644
--- a/perf/memory.js
+++ b/perf/memory.js
@@ -11,14 +11,12 @@ function waterfallTest(cb) {
     var functions = [];
 
     for(var i = 0; i < 10000; i++) {
-        functions.push(function leaky(next) {
+        functions.push((next) => {
             function func1(cb) {return cb(); }
 
             function func2(callback) {
-                if (true) {
-                    callback();
-                    //return next();  // Should be callback here.
-                }
+                callback();
+                //return next();  // Should be callback here.
             }
 
             function func3(cb) {return cb(); }
@@ -41,6 +39,6 @@ function reportMemory() {
         (+(increase / 1024).toPrecision(3)) + "kB");
 }
 
-waterfallTest(function () {
+waterfallTest(() => {
     setTimeout(reportMemory, 0);
 });