Experimental branch to parse a string with LaTeX formulas.
add a WebGL example for TeXZilla.toImage
Add new TeXZilla.filterString(aString) function to filter tex source inside a string.
Merge branch 'parse-string'

Conflicts:
	TeXZilla.jison
	commonJS.js
	main.jisonlex
Implement the streamfilter command line mode. #7
Expose a TeXZilla.setSafeMode(aEnable) function, to make TeXZilla ignore
href and <maction> commands.
Use autoconf.
Make filterString accept a throwonerror argument and add basic tests for the command line interface.
Add a TeXZilla.filterElement function to apply the stream filter to a DOM element.
Fix script uri in previous commit.
fix js error with nodejs
Allow escaping special chars in filterString ; escape XML character in filterElement.
Add a "itex identifier mode" and some tests for this mode and the safe mode. #13
Update configure & install instructions.
Pass the configure parameters to release.sh
Fix missing egrep and typo in DOCUMENT backslash escape
TeXZilla.toImage: use a configurable XMLSerializer function instead of outerHTML to give it a chance to work outside a browser context.
Improve how DOMParser/XMLSerializer are set.
Add mode parameters to the webserver and stream filter.
Add a polyfill for Math.log2 and add more tests for the functions in the public API.