givi - Add helper to coordinate checkouts across all repos
givi - Don't show error when called with empty args
Rename givi.php to givi
givi - Simplify command names
givi - Print list of known repositories on help screen
givi - Alphabetize repos
givi - Fix handling of Drupal branches (filtered branch names) when running "resume"
givi - Explain workfow assumptions in help text
Merge pull request #287 from totten/givi

Givi - Include tool for coordinating checkouts