Required files
maruku/ext/math/elements
maruku/ext/math/parsing
maruku/ext/math/to_latex
maruku/ext/math/to_html
maruku/ext/math/mathml_engines/none
maruku/ext/math/mathml_engines/ritex
maruku/ext/math/mathml_engines/itex2mml
maruku/ext/math/mathml_engines/blahtex