New Serializer for autobahn.

Added serializer parameter in autobahn connection.
Autobahn version Updated in requirements.txt

Change-Id: Ibe18812a6e215ed4adb2aca963b2c83ac7fa62ff

iotronic/wamp/agent.py

@@ -188,6 +188,7 @@ class WampManager(object):
             wamp_transport = [
                 {
                     "url": CONF.wamp.wamp_transport_url,
+                    "serializers": ["json"],
                     "endpoint": {
                         "type": "tcp",
                         "host": whost,

requirements.txt

@@ -13,7 +13,7 @@ oslo.db>=4.27.0 # Apache-2.0
 paramiko>=2.0.0  # LGPLv2.1+
 SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
 keystonemiddleware>=4.17.0 # Apache-2.0
-autobahn>=0.10.1  # MIT License
+autobahn>=18.10.1 # MIT License
 python-neutronclient>=6.7.0 # Apache-2.0
 python-designateclient>=2.11.0 # Apache-2.0
 pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD