MDL-34530 Calendar: Can create an event for any group, but cannot view
it
MDL-34695 wiki: ensure the correct individual subwiki is used/created for a user
MDL-36238 Blocks: Logs page close session write, so editing is set before
MDL-34695 Wiki Module: add prevention to create new record when userid is 0
MDL-36336: Prevent duplicate grade items on restore

During restore, lti_add_instance() was being called
and this could generate a grade item.  This would
produce a duplicate item because the restore
process would automatically generate the grade item.
MDL-36609 javascript: ensure HTML element exists before attempting to perform JS functionality
MDL-36305 theme: Forum reply button is not removed using MyMobile
MDL-36551 - mod_data: Onsite presets now retain the advanced search template.

Presets that were saved to the site would lose the advanced search template when being used.
The previous check was put in place to see if the advanced search template existed or not (presets pre 1.9),
This checked external files properly but not onsite files.

Now checks are being done on both internal and external preset files.
MDL-36184: Assignment quickgrading should only update lastmodified dates for modified submissions
MDL-36012: Assignment, Accessibility - Add user information to alt text for grade icon in grading table.

Conflicts:

	mod/assign/lang/en/assign.php
MDL-35760 filemanager: ensuring the dnd arrow displays in the center of the filemanager for all supported browsers
MDL-35963: Assignment - do not accept empty submissions

Conflicts:

	mod/assign/locallib.php
MDL-36763 Remove onclick event when creating activity left indent link

The left indent onclick is now handled by a Y.delegate so there is no need
for a seperate event handler.
MDL-35819 Improve performance of help tooltip

Rather than using an event handler for each help link, we add the
'helpicon' class to them and delegate the display function.

In order for this to work, we modify the way that Y.io fetches the help to
use the intended target of the anchor rather than a value provided in the
add call. We also no longer modify this URL and instead add the ajaxurl
parameter to it using the Y.io data parameter.

This change is backwards compatible with people calling it without using
the help icon renderer.
MDL-36760 formslib: fix frozen elements with [] in name.

This was a regression caused by MDL-30845 or, to be precise, the related
issue MDL-32785.

Form elements with names like multipier[0] require special handling,
such as is present in HTML_QuickForm_element::_prepareValue. I have
added equivalent handling to MoodleQuickForm::exportValues. I am afraid
that I could not think of a way to do this reliably without duplicating
code.
MDL-36806 question files: fix unnecessary require_login call.

quiz_question_pluginfile later does the correct check. Doing this
other check first means you get an error about changing $PAGE->context.
Automatically generated installer lang files
Merge branch 'MDL-35963-23' of git://github.com/damyon/moodle into MOODLE_23_STABLE
Merge branch 'MDL-36763-MOODLE_23_STABLE' of git://git.luns.net.uk/moodle into MOODLE_23_STABLE
Merge branch 'wip-MDL-36551-MOODLE_23_STABLE' of git://github.com/abgreeve/moodle into MOODLE_23_STABLE