Appfinder fixes and dnd to xfdesktop

[Roccatello Eduard]

Hello people :-)

Yesterday night i've committed some fixes that enable drag and drop from
appfinder to xfdesktop for launchers creation (i think it's useful :-D)
and a lot of search fixes that enable correct pattern matching.

This should let an user to customize his desktop in a faster way...
I hope it's ok :-)

Cheers

--
Eduard Roccatello <eduard at xfce.org>