Replace PrototypeR4 by Orbit.

Move session into mongoid_store.
Reset session when sing_in.

config/environments/development.rb

@@ -1,4 +1,4 @@
-PrototypeR4::Application.configure do
+Orbit::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
   # In the development environment your application's code is reloaded on

config/environments/production.rb

@@ -1,4 +1,4 @@
-PrototypeR4::Application.configure do
+Orbit::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
   # The production environment is meant for finished, "live" apps.

config/environments/test.rb

@@ -1,4 +1,4 @@
-PrototypeR4::Application.configure do
+Orbit::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
   # The test environment is used exclusively to run your application's