1. added elk.printmessage to application.properties to control message
printing in elk reasoner.
2. tarsals 3 and 2  => tarsal 3 and tarsal 2 in xml generation code
3. reconstructed EntitySearch chain (not completed yet)
4. removed redundant processing of fromstructure in RelationHandler
tarsals 3 and 2 => tarsal 3 and tarsal 2
Merge remote-tracking branch 'origin/dev' into dev