Adds wipe_reposd and makes things all around cleaner

The wipe_reposd variable allows the spacewalk module to wipe out
competing repo files in /etc/yum.repos.d/. This also adds a function
such that repo_keys can now is an array, and not a hash of hashes
as needed to pass to create_resources. repo_key_path has been renamed
to repo_keys_path. Also set puppet:///common as the default value
to repo_keys_path.
added 1.0.0 version file