CHANGELOG release version date.
Merge branch 'develop'

Release version 0.6.1
Add setup of (postgres) database for icinga2

Requires the puppetlabs postgresql module
Add class to configure icinga-web UI
Add very basic icinga_web2 class

Mostly configures apache and the generate vhost from the icingaweb2 cli
program.

It should be fleshed out more once icinga web2 matures.