fixed encoding issues when piping wms-capabilities with umlauts
fixed encoding issues when piping wms-capabilities with umlauts

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