merged from pywps-3.0, revision 691: bugfix in Makefile
merged from pywps-3.0, revision 691: bugfix in Makefile

tomkralidis/pywps,jonas-eberle/pywps,ricardogsilva/PyWPS,jachym/PyWPS,geopython/pywps,ldesousa/PyWPS,bird-house/PyWPS