make grunt-cli a dev dep, modify npm start to use it
add jsxhint as a dev dep, add lint and build tasks
modify travis.yml to use the new linting functionality
rename build to check to avoid name clash
add to README
add grunt task for jsxhint
add jest grunt task
move lint and check tasks from npm to grunt
use grunt to run check instead of npm in travis
change readme to use grunt tasks rather than npm
add instructions to install grunt
Merge pull request #4 from cs198/lint

Add linting to project. failure expected due to presence of only one trivially failing test.