sort resolutions from lowest to highest
sort resolutions from lowest to highest

--HG--
branch : 0.8.x

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