Fix missing bulk_meta_tiles in congfig global spec
Fix missing bulk_meta_tiles in congfig global spec

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