Default the react mini editors to on
Default to on in the specs
Cleanup code according to coffeelint
Do not use "-> return" to mark empty function
Upgrade to open-on-github@0.30
Upgrade to language-less@0.14
Upgrade to language-yaml@0.16
Start shipping language-mustache
Merge pull request #3261 from atom/bo-default-react-mini

Default to the react mini editors
Upgrade to language-gfm@0.47
Upgrade to space-pen@3.4.1
Assign ::firstNonWhitespace/TrailingWhitespaceIndex in Token::split

Fixes #3277
Swap order of `ctrl-w` and `ctrl-f4`

This allows `Ctrl-W` to appear in the system menu again until
the atom-shell issue with function keys is fixed.

Refs atom/atom-shell#485
Closes #3283
Prepare 0.124
Merge pull request #3116 from maschs/ms-srcLint

coffeelint!
Upgrade to language-html@0.25
Run benchmarks passes specDir
Correctly bootstrap the benchmarks
Fix benchmark requires
:lipstick: Tighten lint rules

coffeelint.json had some rules set to ignore, but since #3116 was merged there
are no violations of these rules in the code anymore. Tighten up the rules to
prevent those kinds of errors from creeping back in.

Test Plan:

Lint executes without finding any errors

```
$ ./script/grunt coffeelint
Running "coffeelint:src" (coffeelint) task
>> 80 files lint free.

Running "coffeelint:build" (coffeelint) task
>> 23 files lint free.

Running "coffeelint:test" (coffeelint) task
>> 40 files lint free.
Done, without errors.
```