Fix SQL upgrade script typo.
Fix HTML error.
Cleanup and bugfixes for new Unix epoch timestamps.
Parse new scoreboard layout.
Fix team interface trying to request update_clarifications.php in JS.

Not the role is relevant, but the interface we're in.
Update team manual to reflect new scoreboard layout.
Use unprivileged user to compile program to make sure that it
doesn't have access to e.g. testdata files.
Add test source exhibiting problem with compile time testdata access.
Add some Changelog entries.
Fix some PHP errors:
- check that array is passed to foreach()
- typo in function call
- suppress PHP notice for undefined variable