ReadyTalk/avian — pull request #292 by joshuawarner32 (2014-07-13 00:16:54+00:00)
Title: Various improvements

Don't merge this quite yet; I have some testing yet to do on windows.

* use size_t in allocator (instead of unsigned). This is a step along the way to fixing #48.
* move executable allocator out of System class. Part of my crusade to strip System down to the bare minimum.
* remove unused Half type. This was used at some point during my compiler types refactor, but no longer, apparently.
* split Tokenizer into its own header. Very few classes need Tokenizer. No need to conflate it with String. This has been bugging me for a while.