If the http.request plugin gets a proper JSON message as a response, then extract the Platypush message out of the original response

platypush/plugins/http/request/__init__.py

@@ -1,5 +1,6 @@
 import requests
 
+from platypush.message import Message
 from platypush.plugins import Plugin, action
 
 class HttpRequestPlugin(Plugin):
@@ -53,6 +54,12 @@ class HttpRequestPlugin(Plugin):
         if output == 'binary': output = response.content
         else: output = response.text
 
+        try:
+            # If the response is a Platypush JSON, extract it
+            output = Message.build(output)
+        except Exception as e:
+            pass
+
         return output