Reintroduced Google Mercator 900913

insert into tbl_srs (description, projection_acronym, ellipsoid_acronym, parameters, srid, auth_name, auth_id, is_geo, deprecated, noupdate) values ('Google Mercator','merc','WGS84','+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +over +no_defs',900913,'EPSG','900913',0,0,0);