pegelonline: added PegelonlineTableAdapter for pluggable sources
ods: added 'getSourceUrl" to OdsTableAdapter
ods: added basic OdsSourceManager as single point of contact for clients
ods: integrated OdsSourceManager into SyncAdapter
ods: moved source parameter to constructor in Processor
ods: moved domain name + port info to manager
ods: moved contract values to OdsTableAdapter
ods: mayor cleanup and bug fixes.

Sync functionalitiy seems to be restored ...
ods: renamed OdsTableAdapter to OdsSource
ods: enabled manual sync request in SyncUtils
ods: removed OdsContract (replaced by OdsSource)
ods: removed debugging logs
Display station name in list
pegelonline: renamed adapter to PegelOnlineSource
ods: renamed OdsTable to OdsDatabase