when renewing a sliver check the slice expiration first; add helper function for checking slice expiration and printing info in a couple key places
when renewing a sliver check the slice expiration first; add helper function for checking slice expiration and printing info in a couple key places

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