Added tooltip support to MDMongramStringView.
Added tooltip support to MDMongramStringView.

jacksonic/foam,jacksonic/foam,jlhughes/foam,mdittmer/foam,jacksonic/foam,osric-the-knight/foam,jlhughes/foam,mdittmer/foam,osric-the-knight/foam,jacksonic/foam,foam-framework/foam,jlhughes/foam,foam-framework/foam,foam-framework/foam,osric-the-knight/foam,jlhughes/foam,mdittmer/foam,foam-framework/foam,mdittmer/foam,osric-the-knight/foam,foam-framework/foam