It turned out that using mwm hints to instruct wms to
create border-only decorations is not really working
universally. So, instead of doing this, render a solid
frame without shadow on the client-side to handle this
case.
https://bugzilla.gnome.org/show_bug.cgi?id=746222
Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
This subdirectory gets in the way when integrating the inspector
build more fully with GTK+, and does not really add anything.
Just move everything one level up.
