Fix a problem with Fractions and Infinity (promote Infinity to Fraction rather than the other way around)
Correct bug in printing solutionsand hints in TeX mode
Merge pull request #12 from dpvc/fraction-fix

Fix Fraction context to interact better with Infinity
Merge pull request #10 from goehle/master

Changed help text
Made Essay questions work with backticks for easy formatting.  (Added typsetting context).

Removed TinyMCE since nobody used it and it kept giving errors.