MDL-30968 mod/forum Fixed group link
MDL-47391 Update pagelayout for default profile configuration
MDL-39692 grade: Ability to delete letter boundary
MDL-39692 grade: Little code clean up of letter boundary deletion
MDL-48174 core_lang: support for ->skiplangupgrade in lang cron task

Similar to upgrade_language_pack(), update_langpacks_task should
respect skiplangupgrade config. Also, this should be added to behat
whitelist, so it can be disabled during on-sync period, when lang
pack for master is not available.
Merge branch 'MDL-30968-master-forum-group-link' of https://github.com/amandadoughty/moodle
Merge branch 'MDL-39692-master' of git://github.com/FMCorz/moodle
Merge branch 'MDL-47391_master' of github.com:ninelanterns/moodle
MDL-30968 mod_forum: No picture link to group when no groups mode
Merge branch 'wip-mdl-48174' of https://github.com/rajeshtaneja/moodle
MDL-48174 tool_langimport: info about skipped update

So admins can work out why the task might not be having an effect.
weekly release 2.9dev
MDL-42364 core_group: Toggle suspended users in group auto creation
MDL-42364 core_group: Made language string consistent with core_group's
MDL-42364 core_group: Capability check in group front page
MDL-42364 core_group: Capability check in group creation page
MDL-42364 core_group: Capability check in group overview page
MDL-42364 core_group: Moved capability check out of loop