Change operatingsystem to osfamily for Fedora etc

Fixes #11
Release 1.3.0-rc1
Release 1.3.0-rc3
Release 1.3.0-rc4
Fix ordering of config and service parts

Also extract the parts into subclasses and add tests :)
Puppetstore dir is no longer needed
Fix lint issues
Add travis
Release 1.3.0
Task create-rndc was being executed every run