including remote origin in the git information generate by LPVersionRoute

* added the git versions scripts to Xcode (under Supporting Files) -
  these are included in no target but exposes the scripts to Xcode for
  editing
* refactored git related information into its own key/value pair
Merge pull request #29 from jmoody/0.9.x-include-git-remote-origin

including remote origin in the git information generate by LPVersionRoute