fix ISO extent handling to support gml32 (#141)
fix ISO extent handling to support gml32 (#141)

jaygoldfinch/OWSLib,gfusca/OWSLib,tomkralidis/OWSLib,ocefpaf/OWSLib,JuergenWeichand/OWSLib,kalxas/OWSLib,QuLogic/OWSLib,dblodgett-usgs/OWSLib,robmcmullen/OWSLib,geographika/OWSLib,b-cube/OWSLib,bird-house/OWSLib,Jenselme/OWSLib,kwilcox/OWSLib,mbertrand/OWSLib,jachym/OWSLib,jaygoldfinch/OWSLib,geopython/OWSLib,menegon/OWSLib,KeyproOy/OWSLib