Fixed trailing spaces (sorry for the OCD)
Changed hardcoded RVM and rbenv paths to settings
Fixed bug: Flags were never used
Merge branch 'master' into vdh-custom-paths

Conflicts:
	rubocop_runner.py
Using default values for rvm and rbenv path within the runner class
Fixed rubocop runner initialization in event handler
Adding rubocop runner tests file (commented out)
Using async method if we are within ST3