Remove rake task for cucumber.

This is unused and was causing cucumber to run twice in the host app,
if the host used cucumber.
Merge pull request #107 from jguiditta/remove_cucumber_task

Remove rake task for cucumber.
Update for oauth dep and 0.3.0
Added State Machine to target/provider images
Merge pull request #108 from mtaylor/state_machine

Added State Machine to target/provider images