Added Shared module to cabal file
Added and corrected records. Fixed handling when looking up an accent character (append {})
Changed space lookup to use floats rather than compare strings to increase robustness
Improved delimiter handling which was due to a confusion about whether items were seperated by commas in the container (they're not)
Properties now propogate from all element to their children
If the returned LaTeX string is empty then we return a Str rather than a MathType.