Add +1 button (google) to organization page

[dwildt]

Enable users to share information about an organization using +1 button from Google.

Consider a visitor at kinder organization page (http://letshelp.it/organizations/kinder-centro-de-integracao-da-crianca-especial). Other than sharing on twitter and facebook, that user could have the option to share using a +1 button to promote that organization at Google.

**Tech stuff_: http://www.google.com/webmasters/+1/button/_