MDL-38452 repositories: User logged in as have access to non-private repositories
MDL-37676 Use course grade category if mapping fails for manual grade items
MDL-35883 Accessibility: Added title for user link in header and footer for accessibility
MDL-35883 Accessibility: Added title for login as user link in header and footer for accessibility
MDL-38254 Assignment Module: add avaialble message to all assignment types
MDL-38766 wiki2.0: fix redirects

Signed-off-by: Paul Campbell <pcampbell@carnegiecollege.ac.uk>
MDL-38912 prevent time-outs during unit tests.
Automatically generated installer lang files
MDL-38798 remove unused property which was giving notices in PHP 5.5beta
Automatically generated installer lang files
MDL-38887 dim hidden branches in navigation expanded via AJAX requests
MDL-38701 Added missing require_once() before calling course_get_format
Merge branch 'wip-MDL-38701-m24' of git://github.com/marinaglancy/moodle into MOODLE_24_STABLE
MDL-35868: quiz: Use correct attemptnumber when a last attempt exists.
Merge branch 'MDL-37676_24_STABLE' of git://github.com/appalachianstate/moodle into MOODLE_24_STABLE
Merge branch 'MDL-38452-24' of git://github.com/FMCorz/moodle into MOODLE_24_STABLE
MDL-38753 tweak count SQL to make stupid Oracle happy
MDL-39023 Make get_language_dependencies() aware of circular dependency risk

The patch reimplements the core_string_manager::get_language_dependencies()
so that potentially mis-configured language packs with circular
dependencies or self dependency do not make the site unavailable.
Unit tests for the expected behaviour are added.
MDL-38999 timezones: fixed timezone information.
MDL-38999 timezones: add some TZ/stamps know to be problematic to tests.