As a student in a weeks-format course, I want to be able to see the weekly dates displayed relative to my start date, so that I can plan my coursework

Note This requires the changes from MDL-66143 in order to work. Test relative dates Log in as admin Turn on the relative course dates experimental setting Site administration > development > experimental settings Create a course with: relative dates enabled course start date set to 10 days ago format set to "weekly" Enrol a student in the course and set their enrolment start date to the same as the course start Enrol a student in the course and set their enrolment start date to 9 days ago (1 day after the course start) Log in as the first user View the course CONFIRM that the first section begins at the course start date (10 days ago) and goes up in 1 week increments from there Log in as the second user View the course CONFIRM that the first section begins at the user's enrolment start date (9 days ago) and goes up in 1 week increments from there Test fixed dates Log in as admin Create a course with: relative dates disabled course start date set to 10 days ago format set to "weekly" Enrol a student in the course and set their enrolment start date to the same as the course start Enrol a student in the course and set their enrolment start date to 9 days ago (1 day after the course start) Log in as the first user View the course CONFIRM that the first section begins at the course start date (10 days ago) and goes up in 1 week increments from there Log in as the second user View the course CONFIRM that the first section begins at the course start date (10 days ago) and goes up in 1 week increments from there