Add couchbase with modifications, formalize broadcaster and make testable and some other stuff

config/initializers/model_broadcast.rb

@@ -1,3 +1,4 @@
+#TODO: this is really ugly, can cause memory leaks and much more bad stuff. We need a new broadcaster....
 require 'simply_stored/couch'
 module ModelBroadcast
   def broadcast_supplier(*args)
@@ -8,4 +9,4 @@ module ModelBroadcast
   end
 end
 SimplyStored::Couch.send(:include, ModelBroadcast)
-SimplyStored::Couch.send(:extend, ModelBroadcast)
+#SimplyStored::Couch.send(:extend, ModelBroadcast) # this should never happen!!!