Submenus of the extensions are not touch compatible

Submenus of the extensions are not touch compatible, e.g. clicking on the menu “change view” in the filebrowser pops up the submenu as long as you hold your finger on “change view”. After releasing your finger the submenu disappears too.

(from redmine: issue id 1646, created on 2014-04-07 by martin.urban, closed on 2014-04-09)