Git commits in Moodle 3.2.x by Donald Barrett

commit b1972729870555c0a2d8e2cdc2e7c5d49310d18b
Author: Donald Barrett <donald.barrett@learningworks.co.nz>
Date:   Wed, 16 Nov 2016 17:08:59 +0800
Tag:    v3.2.1

MDL-56301 course: Use value for intro field if set in a mods function