Add Google Plus pages to Social

G+ is a little different from the other social media sites Social works with because on G+ there is only one owner of a page. This person is the only one who can add that page into Social and is the only person who can reauthorize it. G+ page managers cannot add or reauthorize pages in Social.

For more info about G+ ownership, see https://support.google.com/plus/answer/2380625?hl=en.