Did some client acceptance things.
Merge branch 'master' of https://github.com/MinecraftRuby/minecraft-server

* 'master' of https://github.com/MinecraftRuby/minecraft-server:
  I like badges.
  I hate myself.
  I can only blame my forgetfulness.
  Whatever.
  Rakefile should do something now.
  Create .travis.yml
  Travis prerelease versioning.