Returning more detailed counters for mdstore feeding.Fixed bug when trying to store too large XML: now all the page of XMLs is skipped, so we can go on with the other records (MongoBulkWritesManager)
Throw detailed esception
Also handle -1 date
implemented use of from/until for incremental record delivery
New method to disable cursor timeout when reading from mdstore
Branch for migration to Saxon HE
Transformed some function to java8
added mongo-mdstore