Colorize git status output

-s Give the output in the short-format
-b Show the branch and tracking info even in short-format
Add migrate alias

If the migration and rollback is successful, this will continue to run
the migration. Else an error will be thrown. This is useful to ensure
that migrations down methods are syntactically valid.

see:
http://robots.thoughtbot.com/workflows-for-writing-migrations-with-rollb
acks-in-mind
Update git st alias
Add a git alias for a pretty graph log
Add key bindings for quicker window movement