WL-3370 Test case that doesn’t exhibit the bug.
WL-3370 Switch from join to select.

This means the problematic aliases aren’t in the SQL so shouldn’t cause a problem.
WL-3370 Add example MySQL test configuration.

This makes it possible to connect the tests to use a MySQL database.
Remove redundant code.
WL-3370 Comment on why this is being done.
Merge pull request #137 from ox-it/WL-3370

WL-3370 Loading course details fails.