Populate bookmarks model
Use BookmarksModel in Bookmarks Manager
Update BookmarksModel when needed
Do not crash when adding bookmark to main folder, fixes #440
Let QContextMenuEvent reach QWebView (but still ignore showContextMenu() call) so Inspector can determine which element should be highlighted, fixes #448
Delay bookmarks saving in all cases
Do not search when Preferences "OK" is pressed, fixes #357
Merge remote-tracking branch 'upstream/master'