Remove disconnect call from publish and consume

user should explicitly call disconnect
Modify README regarding explicity disconnect call

README.md

@@ -44,4 +44,7 @@ rc_rmq.start_consume({
   'cb': callback_function
 })
 
+
+# don't forget to close connection
+rc_rmq.disconnect()
 ```

rc_rmq.py

@@ -74,6 +74,7 @@ class RCRMQ(object):
     def disconnect(self):
         self._channel.close()
         self._connection.close()
+        self._connection = None
 
     def delete_queue(self):
         self._channel.queue_delete(self.QUEUE)
@@ -89,9 +90,6 @@ class RCRMQ(object):
                 routing_key=self.ROUTING_KEY,
                 body=json.dumps(obj['msg']))
 
-        if not self._consuming:
-            self.disconnect()
-
     def start_consume(self, obj):
         if 'queue' in obj:
             self.QUEUE = obj['queue']
@@ -112,7 +110,5 @@ class RCRMQ(object):
         except KeyboardInterrupt:
             self._channel.stop_consuming()
 
-        self.disconnect()
-
     def stop_consume(self):
         self._channel.basic_cancel(self._consumer_tag)

rc_util.py

@@ -13,6 +13,7 @@ def add_account(username, full='', reason=''):
       "reason": reason
     }
   })
+  rc_rmq.disconnect()
 
 def worker(ch, method, properties, body):
     msg = json.loads(body)
@@ -39,5 +40,6 @@ def consume(username, callback=worker, debug=False):
             'routing_key': 'confirm.' + username,
             'cb': callback
         })
+        rc_rmq.disconnect()
 
     return { 'success' : True }