fixed 02's package.json
fixed 02's package.json

- moved should to devDependencies
- removed karma and karma plugins
- remove chai

rendrjs/rendr-examples,jerath/rendr-examples,rendrjs/rendr-examples,crwang/rendr-examples,mjvestal/rendr-examples,crwang/rendr-examples,juliocanares/rendr-examples,jerath/rendr-examples,mjvestal/rendr-examples