Update symsynd

setup.py

@@ -137,7 +137,7 @@ install_requires = [
     'statsd>=3.1.0,<3.2.0',
     'structlog==16.1.0',
     'South==1.0.1',
-    'symsynd>=1.3.0,<2.0.0',
+    'symsynd>=2.0.0,<3.0.0',
     'toronado>=0.0.11,<0.1.0',
     'ua-parser>=0.6.1,<0.8.0',
     'urllib3>=1.14,<1.17',