快速输入ActionScript的JSON解析器

A fast non-strict (as in loose, not lazy) Flash JSON parser implementation. It takes advantage of the ArrayElementType metadata tag and the [flash.utils.describeType](http://livedocs.adobe.com/flex/3/langref/flash/utils/package.html#describeType()) method (calls to which are cached) to provide a typed parser, and uses Adobe Alchemy to ensure speed (at least twice as fast, but generally around four times the speed of as3corelib"s implementation). The interface closely follows as3corelib"s, with some minor extensions: com.rational.serialization.json.JSON.encode(o:*):String delegates to the as3corelib implementation. com.rational.serialization