Fixed AMD example package.json using local grunt and bower

- Upgraded bower version to avoid `createTempDir ` issue https://github.com/bower/bower/pull/1403
- Using grunt locally as well inside package

Also, the [presentation can now indicate the usage](http://seattlejs.training.formidablelabs.com/starter-mac-linux.html#/4/3) of `$ npm run test` instead of `$ ./node_modules/.bin/grunt`
Hey @ryan-roemer It seems that the [build error I am seeing is not related to what I changed](https://travis-ci.org/FormidableLabs/notes/builds/30038819#L6321), can you give me a help?