TISTUD-5401 Studio 3.2: Search shortcut does not focus on the search bar if focus is in the code
  - Apparently the compatibility layer for the IContextService is busted in 4.x. Use EContextService instead.
Merged from development.
Merge branch 'development' into release
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.