Add skeleton v3 am support.
Add skeleton v3 am support.

Only supported method is GetVersion.

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