====== Disable the AppMenu Indicator in Ubuntu (Unity) for all applications ======
<file>
sudo bash
echo "export UBUNTU_MENUPROXY=0" > /etc/X11/Xsession.d/81ubuntumenuproxy
</file>

====== Remove the AppMenu for 12.04, 10.10 and 13.04 ======
This is the only thing that will disable the appmenu for **libreoffice**
<file>
sudo apt-get remove appmenu-gtk appmenu-gtk3 appmenu-qt indicator-appmenu
</file>

====== Install the AppMenu for 12.04, 10.10 and 13.04 ======
<file>
sudo apt-get install appmenu-gtk appmenu-gtk3 appmenu-qt indicator-appmenu
</file>