Add params to codemirror so that the user can select a font, size, and line-height. 
Added more fonts: Cutive Mono, Oxygen Mono, PT Mono, and Share Tech Mono
Added 'Press Start 2P'
Oh my goodness, there was a typo so that Press Start 2P was not actually usable. Thankfully, it has been fixed.
Alphabetized language strings
Label for font options fieldset.