Cache requests voted by logged user to avoid sending single POST for each "Hd.Portal.Request" processed by grid...
Merge remote-tracking branch 'origin/master' into helpdeskV3

Conflicts:
	Hd.Web.Extensions/GridController.cs
	Hd.Web/Controls/RequestList.ascx
	Hd.Web/Controls/RequestList.ascx.cs
	Hd.Web/Search.aspx
	Hd.Web/Search.aspx.cs