Merge pull request #82 from mxia/release

Updated Aptana Studio on release branch to 3.4.3.
TISTUD-5139 - Expand any existing platform path from the path inserted into the installation dialog.
Merge pull request #86 from Shalom/release

TISTUD-5139 - Expand any existing platform path from the path inserted i...
- TISTUD-5151 Errors occurred while refreshing git index ( importing KitchenSink from Samples)
- TISTUD-5176 NPE error occured when imported samples from Studio without setting git repository
  - Try to avoid NPE when accessing potentially null branches field.
  - When disposing a repo make sure to stop all jobs related to the repo (coming from file watcher hooks)
TISTUD-5166 Appcelerator Studio: stuck on the splash screen when restart