Pull in work on faster parser
Fix an escaping inaccuracy in sample data
Add testing for faster parser and some string parsing performance tests
Optimization to string parser
Massive optimization of string parsing (over 2x faster in overall performance test!)
Merge branch 'master' of git://github.com/aviks/JSON.jl into faster-parser
Make parse_string use IOBuffers and be UTF8-friendly
Pull in new faster parser
Update tests for new parser