Fixed a bug having to do with strings with just '{' or '['
Fixed boolean encoding bug

https://github.com/martamius/TJSON/issues/3
Use StringBuf to improve performance.
Added `tab` property to FancyStyle. Added a cache to FancyStyle’s charTimesN.
Merge pull request #4 from andyli/optimize

Optimize TJSON.encode
updated haxelib version
added support for string processors
Merge branch 'master' of https://github.com/martamius/TJSON