Add ou=operating system to the configuration.

The ou=operating system is used for the users choice of the
possible operating systems.
Moved operating system to main configuration.

As the operating system is used for monitoring and configuration
management, the sub tree has been moved to the main configuration.
Finalised the move of the operating system.
Added the configuration services sub tree.
Changed naming scheme to uid instead of ou.
Renamed configuration management to maintenance.
Added sstRelationship object class.
Updated the description to reflect changes done.
Initial Upload.
Change downloadpath of EUPL document / Addting license information
Change date of (c)
Merge pull request #1 from FOSS-Cloud/master

Merge 1.2 to master