Re 1557 Reorganizing Mongo connections.

Conflicts:
	corelib-db/src/main/resources/internal/corelib-db-datasource.xml
Re #1557 Reorganizing Mongo connections.

Conflicts:
	corelib-definitions/src/main/resources/test-config/europeana-test.properties
Merge branch 'neo4j' of ssh://github.com/europeana/corelib into neo4j
Merge branch 'neo4j' of ssh://github.com/europeana/corelib into neo4j
Merge branch 'neo4j' of ssh://github.com/europeana/corelib into neo4j
Merge branch 'neo4j' of ssh://github.com/europeana/corelib into neo4j
Re #1256 Adding http://m2.neo4j.org/content/groups/public repository.