Don't clear the screen unnecessarily

* In my opinion shell scripts (or programms in general) should not clear
  the screen when running.
Remove superfluous parameter puppet_hook.

* This parameter and the hook script it should control is never used.
* The linked hookscript is not roled out.
Introduce oned.conf hook config with hiera.

* Make oned.conf more flexible and allow custom hook scripts.
Cleanup some documentation.
Install hookscripts as package.
Merge pull request #69 from chrisN777/hookscript_cleanup

Make hookscript install + definition in oned.conf configurable + little cleanup
Merge pull request #66 from mattthias/master_dont_clear_the_screen_when_running

Don't clear the screen unnecessarily
Make additional pkg loading more robust.

* check if hook_scripts_pkgs is an array else break.
* Explicit definition of expected packages in both tests.
* Fix wrong package definition in test.yaml
Merge pull request #70 from chrisN777/hookscript_pkgs

Make additional pkg loading more robust.
Add a test for ldap port conf.
Merge pull request #71 from chrisN777/ldap-port--test

Add a test for ldap port conf.
Remove --nobase flag from kickstart file

It might be better to have more packages.
Such as rsync, bzip, ...
Merge pull request #72 from rwaffen/all_your_base_are_belong_to_us

Remove --nobase flag from kickstart file