Release 1.4.5 - More polish

Small bug fixes (like actually allowing the New User form to open),
layout changes
Release 1.4.5 - Display changes

Users list updates properly. Screens for student-only things don't list
teachers.
Release 1.4.6 - Fixed window switching issue

Switching between different forms sometimes broke things. Now it
doesn't.
Release 1.4.6 - Reports form not showing admins

...Again.
Release 1.4.7 - More window switching fixes

Admin form -> New user form doesn't bug out
Release 1.5.1 - Mutex lock

Mutex lock now allows just one instance of the game to run at a time.