changed openflow omnispec to default the controller url to 'unknown'
changed openflow omnispec to default the controller url to 'unknown'

tcmitchell/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,GENI-NSF/gram,plantigrade/geni-tools,GENI-NSF/gram,GENI-NSF/gram,tcmitchell/geni-tools,ahelsing/geni-tools