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

lib/qwaiter/broadcaster/faye.rb

@@ -0,0 +1,10 @@
+module Qwaiter
+  module Broadcaster
+    class Faye
+      def broadcast(message)
+        @uri ||= URI.parse(Qwaiter.event_host)
+        Net::HTTP.post_form(@uri, :message => message.to_json)
+      end
+    end
+  end
+end