major refactor of auth, break up the gigantic omniauth controller into sub classes for way better extensibitily

lib/auth/authenticator.rb

@@ -0,0 +1,24 @@
+# this class is used by the user and omniauth controllers, it controls how
+#  an authentication system interacts with our database
+
+module Auth; end
+
+require 'auth/result'
+
+class Auth::Authenticator
+  def after_authenticate(auth_options)
+    raise NotImplementedError
+  end
+
+  # can be used to hook in afete the authentication process
+  #  to ensure records exist for the provider in the db
+  #  this MUST be implemented for authenticators that do not
+  #  trust email
+  def after_create_account(user, auth)
+    # not required
+  end
+
+  def lookup_user(user_info, email)
+    user_info.try(:user) || User.where(email: email).first
+  end
+end