v0.4: Changes since v0.3.1
===
* A new commitview, allowing you to selectively add changes and commit them.
* You can now upload a commit as a patch to gist.github.com
* GitX now searches for your git binary in more directories and is smarter
  about reporting errors regarding git paths.
* You can now remove branches by right-clicking on them in the detailed view
* GitX now comes with a spicy new icon
* The diff view has become prettier and now also highlights trailing
  whitespace.
* Various little changes and stability improvement