Merge pull request #5 from spheromak/priorities

add priorities option to rhel repo
Updates for serverspec 2.0 release
Version bump
Remove APT dependency and MIT PGP server.

- Remove apt dep and manage the files directly.
- MIT PGP server  was going offline a lot causing problems for anyone trying to
  install a repo, so remove it and use apt-key instead.
Add additional integration tests.

- Added tests for CentOS7
- Added tests for Ubuntu 10.04 and 14.04
- Rearranged recipes to deal with the subtle differences in package names
	across ubuntus
Version bump
Add CentOS 5.10 to test suite
Add a withou-epel CentOS 5 test and a with-epel CentOS 5 test
Add documentatione explaining possible complications with the yum cookboko
Version bump
make ssl_verify optional