MDL-44575: Prevent cron from sending feedback notifications when assignments are hidden in the gradebook
MDL-45210: Fix broken link when plagiarism plugins are disabled
MDL-45232: mod_data: Simultaneously added entries do not sort correctly

This was picked up by behat on a fast machine, when using shorter polling interval.
MDL-45239 editor_atto: The editor cannot be active if it is not the active element

FireFox thinks that you can have an active selection on an element which
currently does not have focus. How this can be the case is a mystery.
MDL-42869 calendar: HTML validation check fails on add event screen
MDL-45080 fix question_category_created url and legacy log data
MDL-45254 atto_equation: Allow insertion of macros at the beginning of words
MDL-44004 grading_rubric: Ensure that score is set before using it
MDL-45090 explain event->courseid
MDL-44398 tags: Fix incorrect usage of caps
MDL-45260 Memcache session support does not work for multiple servers
MDL-44730 core_install: reduced the width of the buttons on the first few screens of the installer so they sit side by side
Merge branch 'MDL-44730_install' of https://github.com/andyjdavis/moodle
Merge branch 'w17_MDL-45080_m27_questioncreate' of https://github.com/skodak/moodle
Merge branch 'MDL-42869' of https://github.com/danielneis/moodle
MDL-45250 add debugging message to deprecated add_to_log()
MDL-45268 behat: tests for participants block
MDL-45280 wrtie default value for admin_setting_configstoredfile

this fixes regression from MDL-45134
MDL-45164 behat: Add a wait to avoid random failures

It may fail in fast systems as the JS animation
to remove the delete comment may be slower than
the following steps where we check that the element
is not there anymore.
MDL-45284 behat: Replace wrongly triggered not found exception