Revert "Merge branch 'wip_MDL-46660_m28_memcache' of https://github.com/skodak/moodle"

This reverts commit 57fdca8cec16f0018537cca9e07581cca601876f, reversing
changes made to 62e30bfbcd14772aa1c2f7ffe990e4b609098549.
MDL-45759 mod_quiz: Correct behat test to reflect changes from a translation fix
Merge branch 'MDL-45759-master-2' of git://github.com/andrewnicols/moodle
MDL-46643 calendar: improved tab order of calendar detail pages
MDL-45932 enrol_imsenterprise: lang string fixes
Merge branch 'MDL-45932-fixes' of git://github.com/danpoltawski/moodle
Automatically generated installer lang files
MDL-45031 theme: fix tabs base line alignment by 1px.

Credit goes to Damyon Wiese, thanks!
Merge branch 'install_master' of https://git.in.moodle.com/amosbot/moodle-install
NOBUG: Fixed file access permissions
weekly release 2.8dev
MDL-46139 Grades: Language change "weight -> calculated weight"
MDL-46139 Grades: Add a column to grade_grades to record how a grade is aggregated
MDL-46139 Grades: Show the aggregation method in the alt text for the icon.
MDL-46139 Grades: Show the aggregation details in the user report.
MDL-46139 Grades: Add contibution to course total column to user report
MDL-46139 Grades: Change usedinaggregation column to 2 columns for status and weight.
MDL-46139 Grades: Add new grade_grades aggregation columns to backup/restore.
MDL-46139 Grades: Add behat tests for the new columns in the user report