Bump Ruby version to 2.0.0-p247
Switch to latest Berkshelf and Test Kitchen
Restructuring to match Test Kitchen 1.0 conventions

Updated config file syntax, and moved tests into a dedicated
“integration” folder, as per the new standard for test layout. Also
switched from minitest to serverspec, as it seems better documented.
Switch to using ark LWRP for downloading binaries

closes #4
Add a .chefignore file
Update version numbers in Readme
Fix typo in integration test