Update readme to mention grunt
Add missing package, update existing

Use caret notation for version, see http://fredkschott.com/post/2014/02/npm-no-longer-defaults-to-tildes/
Add new grunt task for minifying with uglify.

and switch to using \n as a separator
Three typos in the readme
Merge pull request #84 from DieBuche/readme

Update readme, build packages