Merge pull request #8 from marshall-lee/unsubscribe_when_exception

Unsubscribe notifier even when exception occurs

lib/grape_logging/middleware/request_logger.rb

@@ -16,10 +16,15 @@ module GrapeLogging
       def after
         stop_time
         logger.info parameters
-        ActiveSupport::Notifications.unsubscribe(@subscription) if @subscription
         nil
       end
 
+      def call!(env)
+        super
+      ensure
+        ActiveSupport::Notifications.unsubscribe(@subscription) if @subscription
+      end
+
       protected
       def parameters
         {