commit fixes c/o Franz Penz regarding (1) double quotes in the titles and qtips (2) support display of html in the treenode. Modify Tool menu in the toolbar to work with the treepanel folders if there is no selected file on the grid
fix bug when adding url to refresh file panel after successfull add, validate url, show number of subfolders/items inside a folder when deleting from treepanel, disable properties for urls