Handle the case where module is not found.
Fix usage info information for vendor info.
Display branches that contain ref for vendor info.
Feature for vendor info revision.
Add a class to represent a git commit.
Fix metadata string for current branch and sha.
Add commit notes to vendor info ref output.
Move some complexity to commit class.
Add test for additional info for vendor info ref.
Merge branch 'develop' into feature/vendor-ref-info

Conflicts:
	lib/vendorificator/environment.rb
	spec/vendorificator/environment_spec.rb
Merge pull request #16 from 3ofcoins/feature/vendor-ref-info

Feature: vendor info REV