MDL-31410 always send 200 in PayPal IPN response and hide all errors
MDL-43232 JavaScript: Correct typo when cancelling the confirmcancel
MDL-42625 behat: Fixing ExpectationException::__construct() call

Also adding an extra checking to the selector to
ensure it is no updating the list of files.
Merge branch 'MDL-43232-master-1' of git://github.com/andrewnicols/moodle
Merge branch 'w50_MDL-31410_m27_paypalipn' of https://github.com/skodak/moodle
MDL-31410 paypal: fix problem on notifications

This commit fixes a PHP warning about using a
unititialised variable and also the problems when
notifications are enabled and there is not yet a
teacher in the course, defaulting to admin for student
notifications and preventing teacher notifications to happen.
MDL-40058 mod_wiki: trigger event on page map view
MDL-42973 fix MUC caching issue when fetching available updates
Merge branch 'mucupdates27' of https://github.com/skodak/moodle
MDL-42625 behat: Fixing failures

* Expanding fieldsets before setting the course format
* Ensure editors are loaded moved to expand_all_fieldsets
* Return true rather than false when JS is disabled and
  non-allowed steps should continue without throwing an
  exception.
* Submit create user form after editing it
Merge branch 'MDL-42625_master-failures-fix' of git://github.com/dmonllao/moodle
MDL-34432: Allow comment inline (stripping embedded images version)