Merge pull request #188 from tristaneuan/message_received

Trigger :message_received whenever robot.receive is called

lib/lita/robot.rb

@@ -108,6 +108,8 @@ def async_dispatch?
     # @param message [Message] The incoming message.
     # @return [void]
     def receive(message)
+      trigger(:message_received, message: message)
+
       matched = handlers.map do |handler|
         next unless handler.respond_to?(:dispatch)
 

spec/lita/handler/chat_router_spec.rb

@@ -113,6 +113,7 @@ def trigger_route_hook(response)
     end
 
     it "triggers a message_dispatched event" do
+      expect(robot).to receive(:trigger).with(:message_received, anything)
       expect(robot).to receive(:trigger).with(:message_dispatched, anything)
       send_message("message")
     end