Re-implementing rogue commit handler in Ruby

mostly to ease deployment, but also because compiling Go stuff on the
fly requires a proper Go environment as well as some tomfoolery around
*not* overwriting existing executables that may be running and OMG no more.
Removing ability to use Go worm handler thingies
Merge pull request #48 from modcloth-labs/rogue-commit-handler-in-ruby

Rogue commit handler in ruby