Remove database configuration

The database configuration has to be done beforehand. Maybe on a
different machine ...
Remove database parameters

Database parameters are set via installation web gui. There is no
commandline installation process yet.
Clean up the setup routine
Add LoginLdap plugin
Update README
Bump version to 1.0.0
Release version 1.0.0

* Cleanup of download / extraction
* Removal of database parameters
* Addition of LoginLdap plugin