Git commits in Moodle 2.1.7 by Sun Zhigang

commit c27a49324e698804f5ac8c8d8406ec0276c32a5b
Author: Sun Zhigang <sunner@gmail.com>
Date:   Tue, 22 May 2012 19:36:50 +0800
Tag:    v2.1.7

MDL-31201 wiki: fix a hardcoded string

commit 84bfd60a03db657de30204b13709a95fad3934a1
Author: Sun Zhigang <sunner@gmail.com>
Date:   Tue, 22 May 2012 19:22:12 +0800
Tag:    v2.1.7

MDL-33035 workshop: typo in strings