Update test-kitchen support

* requires vagrant 1.1, test kitchen 1.0.0.alpha.2
* Removes vagrantfile (now handled by kitchen-vagrant 0.7.4+)
* Add TESTING.md doc
increment version for development
Merge branch 'COOK-2520-refactor-lwrp' of github.com:opscode-cookbooks/ark into COOK-2520-refactor-lwrp
fixing test in autogen
adding prefix_root to ark provider link resource