allow provision_config_files to be directories (for copying cached yum meta files)
remove stray remove
Merge branch 'testing' of github.com:coryb/aminator
* add "clean_repos" yum plugin option to specify which repos to clean
  before doing install
add tests for provision_configs with directories
update per #94 review comments
Merge pull request #94 from coryb/clean-repos

allow for "clean_repos" yum provisioner option