Cannot focus address book with Messaging Menu if address book is already open.

[Mike Conley]

Steps to recreate:

1) While running TB and the MM extension, click on the Messaging Menu, and click "Contacts" from the list.
2) The address book should open in the foreground. Now focus on another application, like Firefox, and do not close the address book.
3) Choose "Contacts" again from the Messaging Menu.

What happens?

The TB icon in the Unity dock jiggles to indicate activity from TB, but the address book is not shown.

Expected behaviour?

The address book should hop to the foreground.

Explanation?

The focus-stealing-prevention in Compiz is overriding my window.focus() calls. This might be more of a framework bug - if we programmatically call for focus on a window, we should use gtk_window_present_with_time instead of gtk_window_present (see http://mxr.mozilla.org/comm-central/source/mozilla/widget/src/gtk2/nsWindow.cpp)