WMSLegendSource now supports multiple client-requests to merge all legends into one
WMSLegendSource now supports multiple client-requests to merge all legends into one

faegi/mapproxy,Anderson0026/mapproxy,drnextgis/mapproxy,kaiCu/mapproxy,olt/mapproxy,procrastinatio/mapproxy,camptocamp/mapproxy,vrsource/mapproxy,geoadmin/mapproxy,olt/mapproxy,faegi/mapproxy,mapproxy/mapproxy,procrastinatio/mapproxy,camptocamp/mapproxy,Anderson0026/mapproxy,geoadmin/mapproxy,kaiCu/mapproxy,mapproxy/mapproxy,drnextgis/mapproxy,vrsource/mapproxy