The restart counter was a bit flawed, because if the panel would
run for weeks and 3 restarts occured, it's not a big deal, still
the panel would've bothered the user what to do.

We now use a minimum time between restarts, if there was another
restart in the last 60 seconds, ask the user what to do.

You can now quickly enable or disable the tooltips with the
following command:

xfce4-panel --plugin-event=launcher:disable-tooltips:bool:true

.ui extenstions are not recognized by intltool-update.

Something around 90% symbol coverage. This a lot to do, but a
big step forward.

You can popup a launcher by using
xfce4-panel --plugin-event=launcher:popup:bool:false.