Git commits in Moodle 2.8.7 by Jetha Chan

commit f678a6eec0bb07bd271853315f65f1e5c8f9fbd8
Author: Jetha Chan <jetha@moodle.com>
Date:   Tue, 26 May 2015 12:13:14 +0800
Tag:    v2.8.7

MDL-48664 output: change paging_bar to not use non-breaking spaces