Git commits in Moodle 3.8.x by Luke Tucker

commit 421537407d2172a095bec5921d557f983d400d79
Author: Luke Tucker <luke.tucker@netspot.com.au>
Date:   Thu, 04 Jun 2015 09:58:44 +0800
Tag:    v3.8.2

MDL-50455: tool_capability: Use static cache when loading context data