Git commits in Moodle 2.0.6 by Kordan

commit 54d7e72dddd8f85a16b753b1c63192d720eb99b8
Author: Kordan <kordan@mclink.it>
Date:   Thu, 10 Nov 2011 15:03:27 +0800
Tag:    v2.0.6

MDL-29830 theme_base: Fix overflow problems with navigation items