Add git and require.git modules and docs.  Add intersphinx to Sphinx config.
Clone must not cd to path.
Add tests for working_copy.  Fix bugs that showed up in tests.
Update tests.
Merge remote-tracking branch 'ronnix/master' into feature/git

* ronnix/master:
  Prepare 0.12.0 release
  Fixed: PEP8 E128 continuation line under-indented for visual indent
  Updated Oracle JDK version to 7u15
  Vagrant test don't need import from fabtools.vagrant
Update changelog, bump version.
Merge pull request #86 from disko/feature/git

Add new feature: git