Latex support

[rototor]

This is an addition to #161 - now also basic LaTeX formulars are supported. I've updated the feature documentation a little bit featuredocumentation.pdf.

Also the builder share now a common base class as many methods are just copy&paste as they mostly share the same settings.

To support LaTeX SnuggleTex is used. To do so I've created a FSDOMMutator interface, which can register callbacks to modify the W3C-Document before it is evaluated as HTML. For LaTeX the element text is converted into DOM nodes which are then appended as child. The real math rendering then happens using the MathML support.

I also added to the featuredocumentation the generation of a Table Of Content. But prepending this ToC to the document using content:element(toc) in an :after element seems not to work. But maybe I find another solution.

As always I you have better names for some classes, feel free to request changes.

[danfickle]

@rototor

This is excellent. My only query is adding the svg-support module as a dependency of the mathml module. Was this intended? Anyway, I’ll merge now and we can remove if unintentional.

[rototor]

@danfickle MathML needs Batik (indirect through JEuclid). If there is a new Batik release, all modules using Batik should use the same version of Batik. The svg-support module specifies a Batik version, so I added it as dependency to "force" that Batik version on the other modules.

But using explicit dependency management in the parent pom.xml makes more sense.

=> You'll get a pull request for that.