Changed Django get params used in wms_links lookup to move url to defaults dict.  Prevents duplicate WMS links via repeated updatelayers calls
Merge branch 'master' of https://github.com/GeoNode/geonode
Merge branch 'updatelayers_link_fix' into geoserver_updatelayers_dev
Decode name value into localized string before get_or_create query.  Now prevents duplicate WMS download links due to changed bounding box in url
Merge branch 'updatelayers_link_fix' into geoserver_updatelayers_dev