MDL-19069 RSS feed block: Removed link for remote RSS feeds on navigation
MDL-29723 mod/quiz: Modified show/hide button in edit.php and added some extra CSS rules to styles.css to make Question bank block more compatible/adaptable with themes.
MDL-37629 assign: Fix from regression MDL-37244
MDL-37634 lesson: readquestion visibility to protected
MDL-37476 course_create unit test fails if course completion is enabled
MDL-37533 Assign: assign_print_overview does not correctly display assignments that need grading

Conflicts:

	mod/assign/lib.php
MDL-37533 Assign: Use the constant for the submitted status in the query (and parameterize the query)
MDL-37533 Assign: Fix grading filters to show only assignments needing grading

Conflicts:

	mod/assign/gradingtable.php
MDL-37548 Show the incorrect value in a colour picker after validation
MDL-37694 move quiz unit tests to the right place.

Follow-on from MDL-37684.
MDL-37172 Hardcoded strings in some question imports formats
AMOS BEGIN
CPY [unknownorunhandledtype,qformat_blackboard_six],[unknownorunhandledtype,question]
AMOS END
MDL-37713 let phpunit bootstrap create test dataroot if necessary
Merge branch 'MDL-19069_m23' of git://github.com/rwijaya/moodle into MOODLE_23_STABLE
Merge branch 'MDL-37629-23' of git://github.com/damyon/moodle into MOODLE_23_STABLE
Merge branch 'MDL-37628-23' of git://github.com/grabs/moodle into MOODLE_23_STABLE
Merge branch 'MDL-37634_23' of git://github.com/dmonllao/moodle into MOODLE_23_STABLE
MDL-13805 core_message: fixed the admin's ability to read another users messages
Merge branch 'MDL-13805_others_messages_23' of git://github.com/andyjdavis/moodle into MOODLE_23_STABLE
Merge branch 'MDL-37172_23' of git://github.com/jmvedrine/moodle into MOODLE_23_STABLE

Conflicts:
	question/format/learnwise/format.php
Merge branch 'wip-MDL-29723_M23' of git://github.com/lazydaisy/moodle into MOODLE_23_STABLE