Merge branch 'master' of https://github.com/JeffGarland/liaw2014
Merge branch 'master' of https://github.com/JeffGarland/liaw2014
 a lot of cleaning on json printer
Merge branch 'master' of https://github.com/JeffGarland/liaw2014
 a little bit of cleaning on user customized printer
Merge pull request #7 from burlog/master

a lot of cleaning on json printer