[E-devel] window_desk_move_by bug fix

[Aleksej Struk]

Hi all,

Please find the patch attached. This patch fixes the following e17 segfault : when the
window is on the desktop 0:0 and the window_desk_move_by action executed in order to
move the window further left ( i.e. to desktop -1:0 ) the segfault happens.

Moreover, this patch introduces some interface features related with moving a window
between desktops. Now, if the window is moved between desktops using the
window_desk_move_by action, the desktop automaticaly switched and the window stays
focused.

This patch can be also found via the following link :
http://rose.dis.unibz.it/~struk/e17/e17.window_desk_move_by.patch

Thanks,
Aleksej