Signing out when not logged in raises exception

[pbjorklund]

http://hackful.com/users/sign_out

RuntimeError in UsersController#show
Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id

[8bitpal]

Oh, thanks. Will have a look at that.

[dsthode]

Maybe this How-to could be applied to avoid collisions with the users route: https://github.com/plataformatec/devise/wiki/How-To:-Change-the-default-sign_in-and-sign_out-routes