Privacy settings

[kylebarron]

Have a switch for privacy settings

• No location collection
• Location collection disconnected from user identity
• Location connected to user id

For first, store locations on device only
Second, generate unique uuid on the device on first install. Store locations on device attached to user. Figure out a way to store on server without a way for me to know the name of the user sending the uuid
Third, store together on server. Note that sharing location with someone else requires the third option.