Updated Aptana Studio on release branch to 3.5.1.
Fix possible NPE seen in log from TISTUD-5756 NPE when closing a project
TISTUD-5754 Dashboard: Switching between light and dark theme, does not show any affect
  - Switch overall theme as well as our editor theme, assuming there's one with matching name/label.
Fixing unit tests.
Fixing ZipUtilTest.
TISTUD-5774 Refreshing Studio workspace takes too long
TISTUD-5778 Studio: Alloy sample projects marked with invalid warnings due to "TT Unused Rules" validator
      - Indexing should apply to titanium mobile, module and alloy projects as well. May want to just remove project nature binding altogether so we always apply to every project type?
      - Run project sample import in a workspace runnable so all operations get batched together in single update/build at end.
TISTUD-4336 New Classic Project: intermittent freeze when classic templates load
TISTUD-5693 Studio: Intermittent error importing KitchenSink from samples
  - When we try to refresh a project whose git repo has been removed - silently log the error, but don't pop an error dialog to the user.
TISTUD-5781 Studio: Java NPE occured while launching Studio on clean Ubuntu system
  - Add null guard and file existence guard
TISTUD-5790	Modules: Studio fails when installing modules into a project
Fix TISTUD-5378: formatter failed on JS' swtich/default bracket block.
Merge branch 'release' of https://github.com/aptana/studio3 into release
TISTUD-5800 Alloy: New Project - On Windows 7, Alloy does not appear in the project template
Fixing unit tests.
Fix possible NPE uncovered when working on TISTUD-5844.
TISTUD-5847 Usability: Toolbar not forced visible after update
Fixing the unit test.
TISTUD-5812 New platform shortcuts are not loaded after adding the platform in the TiApp
  - Allow programmatically adding/removing project listeners
  - Hide manager class behind interface, access through plugin so it can manage cleanup on plugin shutdown, rather than using global singleton.
  - Lazily instantiate listeners when necessary rather than upfront to avoid unnecessarily instantiating plugins.
Fixed the NPE seen in TISTUD-4345.