Merge pull request #20 from dieterdemeyer/master

Implementation for df plugin
Merge pull request #21 from dieterdemeyer/master

Added feature: custom types.db
Make sure we only install the packages once
Merge pull request #22 from bkkrw/master

Make sure we only install the packages once
Merge pull request #23 from dieterdemeyer/master

Fix deprecation warnings for newer Puppet version
Fixtures scaffolding