I am not interested in the new family sharing option in iOS8. I do not have kids at home and I certainly do not want to open up options for anyone else to use my Apple ID. I do want to continue sharing a family calendar that the family has been using for years. However, the option to share that calendar is now missing. I assume it disappeared during the upgrade process. When I go to the calendar edit screen to invite a new member the option is no longer there. How do I get it back so I can add a new member?