Merge branch 'wip-MDL-31417-MOODLE_21_STABLE' of git://github.com/marinaglancy/moodle into MOODLE_21_STABLE
MDL-30709: Fixed bug with inserting files from Recent files repository

Two parts of changes: in assignment module function assignment_get_file_info was missing
and when populating the list of recent files the function get_file_info was not called, which caused populating the list of recent files with the files that could not later be inserted
MDL-31576 core: Duplicate message definition removed from get_core_subsystem
MDL-27654 Insert a space into the somefieldrequired string
MDL-30723 Fixing English typo(s)
MDL-26807 Updating the withselectedusers_help string
MDL-27285 Updating string grammar on the wiki module's links page
MDL-29153 Fixing typo, "Bellow" should be "Below"
MDL-31107 Fixing instaces of below where it is written as bellow (two L's)
Revert "MDL-31345 theme_afterburner fixes pagelayout-report overflow"

This reverts commit f9b6adaef652fc72fa383cc0cb8f7ddc41456ccd.
weekly release 2.1.4+
Merge branch 'MOODLE_21_STABLE' of git://git.moodle.org/moodle into MOODLE_21_STABLE
Merge branch 'MDL-25883-21' of https://github.com/mackensen/moodle into MOODLE_21_STABLE
MDL-28101 wiki2.0: escape bold and italics for NWIKI formatting
Merge branch 'wip-mdl-31576-m21' of git://github.com/rajeshtaneja/moodle into MOODLE_21_STABLE
MDL-31604 Fix capabilities displayed without spaces causing text going out of the screen
MDL-30815 Choice Labels are now explicitly tied with input elements
MDL-30911: mod_lesson: fix sub-heading level to be lower than lesson title. This issue is an improvement of accessibility compliance
MDL-28283-master Completion Future dates can now be set as completion criteria
Merge branch 'wip-MDL-31463-MOODLE_21_STABLE' of git://github.com/abgreeve/moodle into MOODLE_21_STABLE