MDL-38055 course: fixed double encoding of title properties

Conflicts:
	lib/navigationlib.php

Conflicts:
	blocks/course_overview/renderer.php
	lib/navigationlib.php
MDL-38361: Fixed typos in mod/assign/locallib.php
MDL-38824 Activity completion: Automatic completion quotes not escaped
MDL-39000 Conditional activities: Section condition restore errors
MDL-29877 core_grade:add some upgrade code to fix broken grade items introduced by bad restores
MDL-39080 theme_formal_white: modified "Main menu" block look to resemble the "Navigation" one
MDL-37537 completion: Fix incorrect lang string reference in block
MDL-38637 CAS Authentication: Undefined index: QUERY_STRING when executing cron
MDL-38880 Imported Cloze questions lose embedded images or other media
Merge branch 'MDL-37537-23' of git://github.com/srynot4sale/moodle into MOODLE_23_STABLE
MDL-39054 quiz statistics: move hard-coded text to lang file
Merge branch 'MDL-29877_bad_grade_item_23' of git://github.com/andyjdavis/moodle into MOODLE_23_STABLE

Conflicts:
	version.php
MDL-29877 Grades - version bump for upgrade step.

And whitespace...
MDL-29877 Grades - Remove hardcoded prefix from upgrade step.
MDL-38089 mod_wiki: Fix incorrect links
Automatically generated installer lang files
MDL-39068 use cross-db text column ORDER BY

Credit goes to Valerii Kuznetsov, thanks!
Merge branch 'MDL-39089_23' of git://github.com/dmonllao/moodle into MOODLE_23_STABLE
Merge branch 'MDL-39068_23' of git://github.com/stronk7/moodle into MOODLE_23_STABLE
Merge branch 'MDL-39000-m23' of git://github.com/sammarshallou/moodle into MOODLE_23_STABLE