Main: Fixing Branch handler
Refactoring CreateTestRepository

Now each git command is a function
Merge pull request #132 from marcelometal/some_fixes

Main: Fixing Branch handler
Merge pull request #130 from marcelometal/refactoring_create_repository

Refactoring CreateTestRepository
Merge branch 'master' of https://github.com/tsuru/gandalf

Conflicts:
	repository/mocks.go