Added stubs.
Removed trailing whitespace (makes problems for HTTP headers).
Improved error handling and reporting.
Drafted Unit class (for courses).
Refactored database-row classes with superclass to improve error handling and reporting.
Added require_once for classes.php.
Added get_lists().
Completed the implementation.
Merge remote-tracking branch 'origin/master' into back-end-working
Added more stubs.
Reordered functions so that they’re more similar across APIBase subclasses.
Merge remote-tracking branch 'origin/master' into back-end-working
Merged from master.
Corrected one missing “)”.
Merging from back-end-working.
Added a question to Arunabha.
Merge branch 'back-end-working'
Merge remote-tracking branch 'origin/master'
Corrected minor errors.
Minor change.