MDL-41446 Completion: Incorrectly marks complete when grade data present with no actual grade
MDL-42904 self_enrol: Set customint1 if it's null
MDL-43048 block_tags: Initalised content->text for tags block
MDL-33971: When viewing course log entries for Quiz View Summary a number is displayed not the quiz name
MDL-43068 course&gradebook: show/hide cm & CONTROLS_GRADE_VISIBILITY

Making a quiz visible on the course page, of via the settings form,
could cause the grade item to become visible in the gradebook, even
though the quiz supports FEATURE_CONTROLS_GRADE_VISIBILITY to ensure
that when the grades are hidden in the quiz settings, they do not appear
in the gradebook.

Now, if a module supports FEATURE_CONTROLS_GRADE_VISIBILITY, then
set_coursemodule_visible calls the _grade_item_update callback to update
the grade item(s).

In addition, there was a bug when saving the quiz form, where it used
the value of $cm->visible from the database, which was wrong if the
value of cm->visible had just been changed on the setting form.
MDL-43039 Libraries "The session partition is full." false positive.
MDL-43033 cache: added stats logging to get_many methods
MDL-43033 cache: fixed mode map event invalidation scenario
MDL-43033 cache: added a warning icon for mappings

We now show a warning icon with an explanatory alt if the user
has mapped a store as a mode default that doesn't not fulfill the
requirements of every known definition.
MDL-43033 cache: fixed display of definition stores in admin interface
MDL-43033 pix: backport warning icon
MDL-43033 cache: added stats logging to set_many methods
MDL-40191 MDLSITE-2455 Do not throw coding exception when the activity is not found

Under certain conditions, coding exception is thrown when fetching items from
the navigation bar. The patch prevents them. See more details in the tracker.
MDL-40191 navigation: do not throw an error if activity is not visible

navigationlib is not the place to check it, let the page itself decide what to do in this case
MDL-41819 try to work around max_input_vars restriction
Automatically generated installer lang files
MDL-42904: Self enrol. Fix sloppy version numbers
MDL-43079 quiz statistics : fix stats graph when all grades zero
MDL-43140 mnet: display header after redirects to avoid warning
MDL-43142 mnet: fixed typo in variable passed to get_string