Add printtime() around activatetime output.
Expose cid in problem dropdown.

In case you have multiple contests with (more or less) similar names.
Add extra check to ensure team is really enabled in submit_solution.

This should be handled on the authention part so this is an extra
defense in depth.
Add API endpoint to make a submission.

This requires the user to be authenticated in a team role.
Handle API errors differently.

We can skip the HTML formatting and more importantly, add a HTTP
status code so clients will know that something is wrong.
Move sourcefiles_limit check into one place: submit_solution().

Al the other checks are already there.
Remove useless ini_set().

This only works for the current request, but by the time this gets
executed the limit has already been checked.
Make submit use the API instead of upload.php.
Remove now obsolete NONINTERACTIVE error handling code.
Small changes to submit help output.
Submitclient now also supports username/password authentication.
Update admin manual for submit client changes.