Revert "Update social buttons"

This reverts commit d7caa812a347d4fd8d975a5f341a8836ad6ea2fc.

Conflicts:
	_includes/social.html
Revert "Fix Google +1 href"

This reverts commit 367b2e338e3f9846a98be728bc751c12a5ca3f58.

Conflicts:
	_includes/social.html
Try to fix navbar with Jekyll
Try to fix navbar on GitHub
Fix navbar order
Revert navbar.html
Fix social mess and navbar
Revert master to nojekyll
Update attività
Update navbar
Back to Jekyll
Larger desktop version
Update navbar style
Fix broken link in 01-chi-siamo.html
Merge branch 'master' into development
Include bootstrap3{.css,.js}