MDL-46504 libraries: Fixing typo
MDL-46506 Assign: fix php warning on grant extension page

This code was missed when the extensionduedate was moved to the userflags table.
Merge branch 'install_27_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_27_STABLE
weekly release 2.7.1+
MDL-46302 correct atto img float right

Correct the atto image "float right" margin CSS
MDL-45044 filter_tex: properly escape excutable pathnames for Windows
MDL-43908 mod_assign: Defer notifications for unavailable assignments

Signed-off-by: Tony Butler <tonyjbutler@gmail.com>
MDL-43908 mod_assign: Prevent notifications for unavailable assignments

Signed-off-by: Tony Butler <tonyjbutler@gmail.com>
MDL-43908 mod_assign: Remove redundant code and improve SQL query

Signed-off-by: Tony Butler <tonyjbutler@gmail.com>
MDL-43908 mod_assign: Order submissions by course id then cm id

Signed-off-by: Tony Butler <tonyjbutler@gmail.com>
MDL-46449 fix username prompt in login block when authloginviaemail enabled
Automatically generated installer lang files
MDL-46325 behat: Fixed issue where 'teacher1' didn't exist
MDL-46206 Accessibility: Add aria role to footer image
MDL-46525 enrol_cohort: fix JS error
MDL-46485 Assign: New unit test to show error with group submission
MDL-46485 Assign: Fix when submitting to a group assignment from the default group
MDL-46459 Web Services: Incorrect return parameters get_grades external function
MDL-46460 Web Services: Invalid check of grades visibility for missing grades
MDL-45041 Web Service: add_user_device doesn't store entries for different users using the same push key