Let Bool.VariableType allow subclasses of Bool.  Rename -> to -->
Let Bool.VariableType allow subclasses of Bool.  Rename -> to -->

digitalreasoning/factorie-scala-210,patverga/factorie,Craigacp/factorie,zxsted/factorie,malcolmgreaves/factorie,strubell/factorie,melisabok/factorie,factorie/factorie,joprice/factorie,hlin117/factorie,asubbaswamy/factorie,pogren-oracle/factorie