Added course functionality to Admin.php. Completely revamped User.php to not use a userid. The primary key for the user table in the database is now the email address. The USER::fromDatabase(string $email) now only takes an email address instead of a unique column identifier and value. USER set functions now have an option to push changes to the database. All scripts that previously used USER::fromDatabase(string $unique_column, $value) will now need to be edited to function properly.
Merge branch 'master' of https://github.com/Strongbeard/Web_Sys_Development
I believe I have edited all php files that called USER::fromDatabase() to use the correct version. Please update any changes you guys are implementing to reflect these changes.