New stuff

-Beginning the shift to a new loader icon that's entirely CSS. This will
cut down on the HTTP footprint. Also, it'll be much easier to put in
places and be much more attractive
-Minor save improvements and more fixes to prevent storage overflow
-Moderate improvements to the lab report format
-Popups can be normal size or large
-Blackout Condensed gets a moderate improvement to enhance readability
-LaTeX commands now load properly on file load
-Began spreadsheet capabilities. Tables now open in a panel instead of a
popup. A table can be specified to have X columns and X rows with cell
labels like A1.