Fixup etree/ElementType for 2.6 and below
Fixup etree/ElementType for 2.6 and below

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