add PostGIS < 2 support (#124)
add PostGIS < 2 support (#124)

ricardogsilva/pycsw,kevinpdavies/pycsw,kalxas/pycsw,benhowell/pycsw,PublicaMundi/pycsw,ckan-fcd/pycsw-fcd,geopython/pycsw,rouault/pycsw,ocefpaf/pycsw,tomkralidis/pycsw,bukun/pycsw,bukun/pycsw,mwengren/pycsw,ricardogsilva/pycsw,bukun/pycsw,PublicaMundi/pycsw,tomkralidis/pycsw,mwengren/pycsw,rouault/pycsw,kevinpdavies/pycsw,ckan-fcd/pycsw-fcd,ricardogsilva/pycsw,geopython/pycsw,tomkralidis/pycsw,geopython/pycsw,kalxas/pycsw,ingenieroariel/pycsw,ocefpaf/pycsw,benhowell/pycsw,kalxas/pycsw,ingenieroariel/pycsw