flexible, safely tries to restart plugins if they crash, user can
drag'n'drop panel plugins on it, placement is now totally free, one can
set a background image or transparency, etc..
See http://www.xfce.org/documentation/changelogs/4.4.3.
Fixes some bugs which surfaced on amd64 since Glib update, some patches
are now integrated upstream.
While here, update PLISTs and use pkg_subst -c in xfce4-session/Makefile.
diff reads ok to ajacoutot@, go ahead jasper@
- fix WANTLIB and *_DEPENDS, bump SHARED_LIBS version
(warning, make update won't work, remove previous version first)
- add update-desktop-database goo
ok ajacoutot@ steven@