Remove hbsfy Browserify transform from examples

The `hbsfy` Browserify transform was listed in the `package.json` and
`Gruntfile.js` for the example apps, however it was not used.  I would
love to move to actually using it eventually (and not the
`app/templates/compiledTemplates.js` bullcrap), but we're not there yet.
Merge pull request #224 from airbnb/remove-hbsfy

Remove hbsfy Browserify transform from examples