Lab Report fixes

While writing a lab report on Gltn while collaborating in realtime
-Tables now stand out more in the content
-Tables now generate better
-Massive storage and memory leak is fixed. While collaborating, the
system continually adds to the hovertagRegistrar array without being
encapsulated. There is no check, so the array grows to enormous
proportions. This creates huge files full of unnecessary data.

Additionally, since the hovertags are checked every few seconds to
append to new appearances of the element, the system ends up running
through about 2000 items each second. (At least, it tries to. There's
likely overlap, ~1500 items/second, forming a huge queue and a memory
leak)

This is now fixed by proper checking before items go to the registrar.
The leak has been contained!

-The lab report format got a few adjustments for proper presentation
-Spreadsheet bug fixes
-More LaTeX commands
-Other bug and ui fixes