Rename repo attribute to module_repo.
New global option '-d' for grit debug mode.
Ignore /.rbx
Add Vendor#to_s & Vendor#inspect
Rename list to status
Factor out clean repo check to a separate method.
Vendor: Add helper methods for config & grit, rework Vendor#status.
Updatability info in status.
Factor out Vendor#in_branch method, rework Vendor#run! to support merge.
New command: vendor pull
Correct conjured_revision for git modules.
Correct pattern
Fix edge cases in Vendor#to_s, Vendor#merged, Vendor#updatable?
Adapt tests to the 'status' command.