MDL-35648 (backport) adding missing distinct selector in sql on participation report
MDL-45935 tests: Specify step names during backup/restore tests
MDL-31998 mod_feedback - Feedback depend questions bug
MDL-45901 - Quiz - Random question category question are not visible,in RTL mode
Merge branch 'MDL-45935-26' of git://github.com/andrewnicols/moodle into MOODLE_26_STABLE
Merge branch 'MDL-35648-v26' of git://github.com/danielneis/moodle into MOODLE_26_STABLE
MDL-42531 assign: refactor batch operations to use forms properly

Avoids a lot of ugly optional_param() use. Also fixes the
non-functional cancel buttons.

Conflicts:
	mod/assign/locallib.php
	mod/assign/tests/base_test.php
	mod/assign/tests/events_test.php
Merge branch 'MDL-45901_Quiz_MOODLE-26-STABLE' of git://github.com/nadavkav/moodle into MOODLE_26_STABLE