Merge pull request #16 from abraithwaite/develop

Cleaned up docs and help output
Merge pull request #17 from abraithwaite/develop

Coverage working again
Fixed regression with git fat status

Previously, git fat status would exit cleanly even if the repository
wasn't a git fat repo.  This makes sense so I changed a runtimeerror
to be a warning instead and exit cleanly
Merge pull request #18 from abraithwaite/fix-regression

Fix regression with git fat status
Release 0.3.1