MDL-48213 filter_algebra: Allow cookies in debug script
MDL-48213 filter_algebra,filter_tex: Require sesskey for debug actions
Automatically generated installer lang files
Automatically generated installer lang files
MDL-45699 behat: Don't use behat/lib.php functions in core.

behat/lib.php script should not be usually included, neither any of its functions
used within mooodle code at all. It's for exclusive use of behat and
moodle setup.php. For places requiring a different/special behavior
needing to check if are being run  as part of behat tests, use:
    if (defined('BEHAT_SITE_RUNNING')) { ...
Automatically generated installer lang files
Merge branch 'MDL-48213-m28-master' of https://github.com/dthies/moodle into MOODLE_28_STABLE
Merge branch 'install_28_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_28_STABLE
weekly release 2.8.1+