Added Modal Window animation.
Tweak.
Added dropdown animation.
Removed context menu animation due to project manager selection performance issue.
Removed quick open dropdown border. #5029 is no longer an issue.
Removed backface-visibility property as it's not needed.
Added JSTree transition.
JSTree animation tweaks.
Quick Open animation tweaks.
Muted Extension Manager keyword text.
Added input glow transition.
Added pressed state to Project Dropdown button.
Replaced clear icon with unicode character to keep it consistent with other components. Removed unused images.
Replaced Recent Project close icon with unicode character and removed svg icon.
Replaced sidebar selection bg with CSS and removed bg image.
Sidebar selection tweak.
Merge branch 'master' of https://github.com/adobe/brackets into larz/modal-transition
Tweaked sidebar selection shadow and highlight.
Removed close and dirty icons and replaced them with unicode characters because they're similar except unicode looks better and we have more control over it using CSS.
Merge branch 'master' of https://github.com/adobe/brackets into larz/modal-transition