Update stackable.js to the latest git.
Update Font Awesome to v4.0.3.
Update dependencies.
Merge pull request #92 from XhmikosR/updates

Updates
Show the header info even on small devices.
Remove unneeded spaces from img tags.

Also remove unneeded end tags.
Fix validation error.
Remove unneeded ids from header and footer.
Update JSHint's options.
Update Gruntfile.js.

No need to copy LICENSE.md. Also remove an unneeded copy step.