Bug#798591: libreoffice: Long click closes Libre Office 5

[John-Paul Durrieu]

removing libreoffice-gtk,  libreoffice-gt3, and libreoffice-gnome (which 
depends on
libreoffice-gtk3) does work around the problem, cheers! Looks are different, 
but I can live
with that until a fix is available.

I'm using XFCE.