pass blocks to methods exposed by Mixin::DSLEval
Merge pull request #638 from RiotGames/fix-groups

pass blocks to methods exposed by Mixin::DSLEval
version bump 2.0.3
Add bzip2 tarball support

Had to monkey-patch rbzip2 to fake some methods that minitar calls
(unnecessarily in our case) at init, and post-unpack.