TODO list
=========
+ Error checking
+ Documentation
+ Implement one or more tree builders
- test/tree2.c would serve as a basic tree builder
- NetSurf's libxml2 binding could do with being brought back here somehow
+ Parse error reporting (incl. acknowledging self-closing flags)
+ Implement extraneous chunk insertion/tokenisation
+ Statistical charset autodetection
+ Shared library, for those platforms that support such things
- requires possibly prefixing more things with hubbub_
+ Optimise it
- being clever with e.g. attribute allocation in tokeniser
- tag name interning / replacing element_type_from_name()
- Hixie's data (http://tinyurl.com/hixie-html5-data-2007)