Update sitemap.xml
Add 'Comitato scientifico'
Merge branch 'development'
Fix email
Merge branch 'development'
Update README.md

Add a brief description
Update social.html

Disable facebook "Follow button", doesn't work with pages:
http://bit.ly/FBnoFollowButton
Update 03-attivita.html
Update social buttons

Use asynchronous js loading for the Google +1.
Add href to the "Tweet" and "+1" buttons.
Fix Google +1 href
Update 03-attivita.html