return exit code based on number of failures
return exit code based on number of failures

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