screen should list all commands entered

[mwcz]

Each command that gets entered should stay on the screen, command-line style.

[mwcz]

This is implemented now in the textarea but not yet displaying on the 3D screen

[mwcz]

Can't map a texture onto the screen until it has UV coordinates. Until we can get a computer model with UV coords, I put a flat plane on top of the screen and put the text on it. Working fine for now, so I'll close this.