reenabled option of controlling allowed hosts in proxy
Proxy / if allowedHost is  then localhost was the only allowed host.
Add HTML5 UI to the list.
Widgets / Removed unused variable.
Widgets / Fix quick links menu.
Harvester / OGC WxS / Scale hint conversion error on harvesting (#1289).
Widgets / Add harvesting menu to user action menu.
Merge remote-tracking branch 'origin/2.10.x' into 2.10.x
Update doc.