Replace synchronizedMap with ConcurrentHashMap
Unsubscribe alignment from ontology manager on remove
Remove alignment when removing worksheet
Try reusing workspace in offline rdf generation
Fixed reflection for removing worksheet commands from history
Remove all workspace alignments when removing workspace
Remove test code and revert offline rdf generator to remove workspace instead of worksheet
Merge pull request #124 from InformationIntegrationGroup/gc-jason

Cleans up alignments, fixes removing commands, and replaces synchronized maps with concurrenthashmaps in rep.