Florian Müllner c8a07dd612 messageTray: Fix condition for adding the tray to CtrlAltTab
With the current condition, we wrongly add the message tray to
CtrlAltTab if we start up locked or as greeter.

https://bugzilla.gnome.org/show_bug.cgi?id=708380
2013-09-23 13:32:17 +02:00
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