Git commits in Moodle 2.5.x by Oleg Sychev

commit 64ab5badbfbc156679c9b77bbd51eb6f07f22b68
Author: Oleg Sychev <oasychev@gmail.com>
Date:   Sat, 25 Jan 2014 07:41:01 +0800
Tag:    v2.5.5

MDL-42456: add Mercurial vcs support to plugin_external_source

commit 14e5c999601f384c1ce5a168c0184d7372afc8cb
Author: Oleg Sychev <oasychev@gmail.com>
Date:   Thu, 06 Jun 2013 01:58:26 +0800
Tag:    v2.5.1

MDL-40013 Easier to override saving question hints