MDL-43109: mod/wiki - When editing pages populate the default value for the tags input.
MDL-43302 JavaScript: Migrate moodle-form-passwordunmask to use Shifter
MDL-43262 JavaScript: Correct width attribute override

This should be done using an attribute modification, rather than at the
constructor level.
MDL-43262 JavaScript: Correct visible attribute override

This should be done using an attribute modification, rather than at the
constructor level.
MDL-43262 JavaScript: Correct use of centered attribute override

This should be done using an attribute modification, rather than at the
constructor level.
MDL-40918 mod_lti: replaced 'view' and 'view all' add_to_log calls with events
MDL-40918 mod_lti: removed the 'launch' add_to_log call

This add_to_log call is unnecessary and does not need to be replaced with an event.
It is called whenever we view the external tool, which will trigger the view event.
There is no need for two events when this occurs.
MDL-43531 Course: Remove deprecated functions from dnduploadlib

These functions were deprecated in 2.5 and are due for removal in 2.7.

Removing as per deprecation policy.
MDL-35423 JavaScript: Reduce specifity of course AJAX

Some themes may choose not to use the same layout as core themes. Reduce
the specifity of these to allow other themes to use our JavaScript without
following the same markup.
MDL-33600 Assign: Allow teachers to skip notifying students about grade update.
MDL-33600 Assign: Add an admin setting to set the default for sendstudentnotifications
MDL-33952 Assignment - bon voyage!

mod_assignment has been replaced with a stub that only exists to support restoring and
auto upgrading to mod_assign. If you require mod_assignment for some old plugin, then
overwrite with the 2.6 version manually.
MDL-43412 quiz with grade period and password did not work.

Once the attempt became overdue, it was impossible to get in to submit
it because of a redirect loop. This fix resovles that loop, so the
student can enter their password and get in.
MDL-40313 questionbank: Add question filtering API

Add new API for filtering questions, refactoring the options to display
old questions and include subcategories into new
question_bank_search_condition classes. Make the new API pluggable via
local_[pluginname]_get_question_bank_search_conditions.
MDL-40313 Fix code and doc checker warnings.
MDL-40313 question bank search classes should be namespaced.
MDL-43178 mod_forum: fixed the digest setting confirmation message
MDL-41577 SCORM: remove old IE9 hack that didn't really work.
MDL-42792 SCORM: Prevent JS error when network connection fails. - return false to SCORM package so that issue can be detected and reported.
MDL-43222 SCORM: correct check for list of attempts and make correct check for current attempt in scorm_get_toc