* adapted FeatureInstaller to adapt addons info in ConfigAdmin, so that this info is stored in a file
* removed experimental features
* removed package selection from UI as it is meant to be only set once
* introduced new packages: minimal, simple and expert
* introduced a setup page on the dashboard, if no package is set (and thus openHAB is uninitialized)
* added auto-refresh of dashboard to have new entries appear automatically
Signed-off-by: Kai Kreuzer <kai@openhab.org>
