Panel autohide fixes

[Moritz Heiber]

> 1) I removed the call to gtk_window_present() because it's causing a
> focus change (very user unfriendly)

Thank god! ... err ... thanks Olivier ;> I was getting crazy about it.

> 
> 2) I purge gtk events on panel orientation change because it was causing
> the panel to be set right in the middle of the screen when switching
> from vertical mode to horizontal.

> I still have a problem, when I log out/log on, the panel sometimes is
> located on the top left corner (which is definitely not the place I left
> it).

No problems over here ... panel orientation is and was centered at the bottom.
 
> Cheers,

Bye,

Moritz