temp
change api;release v0.0.6
update readme
update readme
syntax fix and file stream support
add more test
add stream and buffer support
Update README.md
add config.js
change api,not complete
release v0.0.7
fix merge wrong
fix README.md
add test
change throw error to return callback(error)
release v0.0.8
Update README.md
fix null callback
add mocha options;merge multi test files
clean code