Gtk2-TrayIcon t/load.t failure and a couple of fixes in Gtk2

[Ross McFarland <rwmcfa1 neces com>]

found a broken test in Gtk2-TrayIcon as well, diffs:

Index: t/load.t
===================================================================
RCS file: /cvsroot/gtk2-perl/gtk2-perl-xs/Gtk2-TrayIcon/t/load.t,v
retrieving revision 1.1
diff -r1.1 load.t
2c2
< use Test::More tests => 3;
---
> use Gtk2::TestHelper tests => 3;

let me know if it's ok to commit.

muppet/kaffee you may want to look at the changelog of Gtk2, something
apparently changed in gtk+ HEAD that caused a failure on
GtkFileChooser.t

later,
-rm