Waiting for Thomas Mortagne's validation of whether we can reuse the "website" property or not. FTM the change I've done on exo is: https://extensions.xwiki.org/xwiki/bin/view/ExtensionCode/ExtensionSheet?viewer=changes&rev1=116.4&rev2=116.6&
Example usage: https://extensions.xwiki.org/xwiki/bin/view/Extension/Like%20Application/
