Git commits in Moodle x.x.x by papillon

commit 2a9e7de93cb58cdddc2a3e6a00308bde0ace1407
Author: papillon <papillon@muf.biglobe.ne.jp>
Date:   Mon, 16 Mar 2015 23:59:11 +0800
Tag:    v2.7.8

MDL-49311 user: fix default sorting problem

commit a65ba62f66da2b1fc8358fa680e2416ae942d2dc
Author: papillon <papillon@muf.biglobe.ne.jp>
Date:   Mon, 16 Mar 2015 23:59:11 +0800
Tag:    v2.8.6

MDL-49311 user: fix default sorting problem

commit 28d27e85d70614cb69458cde3973c9729096fc11
Author: papillon <papillon@muf.biglobe.ne.jp>
Date:   Mon, 16 Mar 2015 23:59:11 +0800
Tag:    v2.9.0-rc1

MDL-49311 user: fix default sorting problem