Start extending gitty and start using it in projects.js instead of exec
Add a few more gitty extensions
Merge branch 'develop' of github.com:martindale/shipright into tmp/mergeDev

Conflicts:
	app/controllers/projects.js
Merge branch 'develop' of github.com:martindale/shipright into tmp/mergeDev

Conflicts:
	app/controllers/projects.js
Modify viewcommit and viewBlob to use gitty, added needed methods to gitty
Merge branch 'develop' of github.com:martindale/shipright into feature/extendGitty
change global gitty to point at lib extension
Merge pull request #3 from unusualbob/feature/extendGitty

Feature/extend gitty