Added 5 new Action types for activating devices and the properties contingentOnOffer and notAvailableAtOrFrom.
Per public-vocabs discussion, renamed OperateAction, notAvailableAtOrFrom, and contingentOnOffer.
Added EmployeeRole and netWorth.
Merge remote-tracking branch 'origin/sdo-meltingpot'

Conflicts:
	data/schema.rdfa