Display Mess Detector.
Control which rulsets are used with Mess Detector.
Merge branch 'master' into feature/mess-detector

Conflicts:
	main.js
Move paths to separate module for easier testing.
Unit tests for CommandRunner module.
Add l18n to package.json.
Unit tests for Events module.
Tests for Strings module.
Update CodeSniffer to prerelease.
Merge branch 'master' into feature/mess-detector

Conflicts:
	main.js
	php-tools.css
Update Mess Detector to prerelease version.
Merge branch 'bug/windows-phpcs'
Only run parsers if options has been chosen.
Refactor editor and document event listeners.

Resolves #4.
Remove old code from refactoring.
Release version 0.1.3.

Resolves #2.