after "bower install foundation --save":
run "grunt" command to import Foundation scripts and css to index.html automatically

the "grunt" command will get all the dependencies on bower.json file and import them at index.html inside the "bower:css" and "bower:js" commentary tags
initializing Foundation
updating project ID
updating default HTML markup and CSS classes to Foundation structure
adding style classes
adding google+ sign-in client-side flow api
minor updates at sign-in scripts
updating html and css to work with google+ sign-in api
Fixes #4