create bi directional confirmable friend system

[mftaff]

We will need:

friends attribute for User ( friends:array_of_Users ) pending_request model -> gets created when you send a friend request. It needs two user attributes sender and reciever.

1. when a user sends a request we can create a pending_request. (sender: current_user, receiver: target)
2. on (manage) friends page load have logic to show pending_requests (sender.name wants be a friend y/n)
3. if yes: add current_user to sender.friends && add sender to current_user.friends
4. if no: destroy pending_request instance.

Note on views:

• friend list will have to show three options: send request, pending, friends!
• users/show will have to be updated to only allow showing a friend's page

[mftaff]

I ended up using this gem.

The friendship model now works!