update CHANGES for upcoming 1.10.0 release
update CHANGES for upcoming 1.10.0 release

mapproxy/mapproxy,camptocamp/mapproxy,drnextgis/mapproxy,olt/mapproxy,olt/mapproxy,mapproxy/mapproxy,drnextgis/mapproxy,camptocamp/mapproxy,vrsource/mapproxy,vrsource/mapproxy