Fix timezone handling in reminder e-mails
Bumping version number for 2.5.2 release
Bumping versino number for v2.5.2+
CONTRIB-5300 Notifications: use time zone of the recipient
CONTRIB-5335 Help text for "force when overlap"
Backport fix from master branch
CONTRIB-5338 Statistics by group size: remove strict standards warning message
Merge remote-tracking branch 'upstream/MOODLE_25_STABLE' into MOODLE_25_REVIEWED