WIP on mappable marc record driver
visibility and second call number
mapping for MZK - finalization
online availability
format detection
datasources configuration updated for MZK OAI
debugging var_export removed
MzkNormsMarcRecord record driver for MZK04
marc mapping updated
small bug fixes in MzkMarcRecord (ID, acquisition date, logical base)
harvesting and indexing script for MZK
Merge branch 'mappable_marc_record_driver'

Conflicts:
	conf/datasources.ini