Minor Updates

With this release, the barman log dir (by default /var/log/barman) will be created. The dependencies for the barman package will also be installed

Creating the barman incoming directories

With this release, the barman incoming directories (barman_home/server.name/incoming) are created in anticipation of their use

Tagging v0.1.0

Merge pull request #3 from modcloth-labs/updates

Adding barman ssh config to make sure it doesn't get prompted for a host key