Automatically generated installer lang files
MDL-47706 gradebook: Update pageload time between changes

Since MDL-38732 we reject changes if another change has been made more
recently. As a result, if process_data is called, and then we roll into the
next millisecond period before process_data is called again, the change is
rejected.

Different errors were seen because the millisecond rollover occurred at
different time within the test.

Different error conditions were seen because not all of the tests check for
an error from the call to process_data(), instead just checking that the
value had been updated correctly.
MDL-47673 grades: unittest change caused by generator change

Unit test was introduced in MDL-40697 when the generator for quiz activity was setting grade=0
Merge branch 'MDL-47706-master' of git://github.com/andrewnicols/moodle
Merge branch 'install_master' of https://git.in.moodle.com/amosbot/moodle-install
NOBUG: Fixed file access permissions
on-demand release 2.8beta+
MDL-47814 core_grades: Improved coverage of user_graded event tests

The tests needed to use the API in order to trigger the user_graded
event that occurs when the course final grade has changed.