Also fixed a minor bug with printing, and removed the ability to
configure the parser.
Added and updated QUICKSTART.md as a quick way to get people started.
There's some broken scripts under 'scripts/' that require functions to
work properly.
Getting the array's length is still not available yet, so I'm not
marking arrays as done - but everything that is there is tested.
I've also tweaked the assert output callbacks to also print 'assert failure'.
