…, but only for non-retina displays. For retina displays, grey scale anti aliasing is used.

…n using a new preference fontSmoothing. With these changes, the UI would have gray scale anti aliasing and the code view container editor-holder, would have subpixel-antialiasing on. The reason to disable subpixel antialiasing for UI is that SourceSansPro does not render fine on low res monitors with subpixel AA on.

…pixel-aa that will get added to #editor-holder by default on Mac. Also changed the preference name from fontSmoothing to fonts.fontSmoothing and moving all the preference change logic to ViewCommandHandler.js where the font setting change listeners are present.

…moved hasClass as add/removeClass is anyways going to take care of that

…of the comments

Conflicts:
	src/nls/root/strings.js