use constants for VLAN min and max; VLANRange str() prints any when appropriate
use constants for VLAN min and max; VLANRange str() prints any when appropriate

tcmitchell/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,tcmitchell/geni-tools