fix for python 2.7 and prepare next release

beem/version.py

 """THIS FILE IS GENERATED FROM beem SETUP.PY."""
-version = '0.19.21'
+version = '0.19.22'

beemapi/version.py

 """THIS FILE IS GENERATED FROM beem SETUP.PY."""
-version = '0.19.21'
+version = '0.19.22'

beembase/version.py

 """THIS FILE IS GENERATED FROM beem SETUP.PY."""
-version = '0.19.21'
+version = '0.19.22'

beemgrapheneapi/graphenerpc.py

@@ -260,7 +260,7 @@ class GrapheneRPC(object):
                     reply = self.ws_send(json.dumps(payload, ensure_ascii=False).encode('utf8'))
                 else:
                     reply = self.request_send(json.dumps(payload, ensure_ascii=False).encode('utf8'))
-                if reply == '':
+                if not bool(reply):
                     self.error_cnt[self.url] += 1
                     sleep_and_check_retries(self.num_retries_call, self.error_cnt_call, self.url, "Empty Reply")
                     self.rpcconnect()

beemgrapheneapi/version.py

 """THIS FILE IS GENERATED FROM beem SETUP.PY."""
-version = '0.19.21'
+version = '0.19.22'

beemgraphenebase/version.py

 """THIS FILE IS GENERATED FROM beem SETUP.PY."""
-version = '0.19.21'
+version = '0.19.22'

setup.py

@@ -16,7 +16,7 @@ except LookupError:
     ascii = codecs.lookup('ascii')
     codecs.register(lambda name, enc=ascii: {True: enc}.get(name == 'mbcs'))
 
-VERSION = '0.19.21'
+VERSION = '0.19.22'
 
 tests_require = ['mock >= 2.0.0', 'pytest', 'pytest-mock', 'parameterized']