Place plugins new options

[gnumdk]

http://puffy.homelinux.org/~gnumdk/compiz/patch/place.patch

I just sent this on compiz mailing list:

http://lists.freedesktop.org/archives/compiz/2006-December/000955.html
http://lists.freedesktop.org/archives/compiz/2006-December/000956.html

Warning, first version sent to mailing list was a bad one!