Fixed path to fauna config file in rails helper file.
Changed auth check to use :server_key instead of :secret to match new API.
Fixed 404 when posting a new class to Fauna with Fauna::Resource#post.
Use port 443 when the connection scheme is https
Undo 6f7c493cbd35aaeba9d1cb7379ffe4ead96251ca

We have to specify the full class when doing
Fauna::Resource.create(...
Undo 6010447fa59f8c185e65af4344af884c6d7059c5

The secret in this case is a server key, but generally it's
referred to as the authentication 'secret'
Update docs on accessing fauna resources like custom classes
Merge branch 'master' of github.com:longform/fauna-ruby
Added more verbose error messaging to invalid requests.
Added permissions to Fauna::Resource.