Set defaults correctly in create_event()

This finished what the 3.0.2 bugfix started

Author: Sam Clements

riemann_client/__init__.py

@@ -1,4 +1,4 @@
 """A Python Riemann client and command line tool"""
 
-__version__ = '3.0.2'
+__version__ = '3.0.3'
 __author__ = 'Sam Clements <sam.clements@datasift.com>'

riemann_client/client.py

@@ -26,10 +26,9 @@ def __exit__(self, exc_type, exc_value, traceback):
     @staticmethod
     def create_event(data):
         """Creates an Event from a dictionary"""
-        data.setdefault('host', socket.gethostname())
-        data.setdefault('tags', list())
         event = riemann_client.riemann_pb2.Event()
-        event.tags.extend(data.pop('tags'))
+        event.host = socket.gethostname()
+        event.tags.extend(data.pop('tags', []))
         for name, value in data.items():
             if value is not None:
                 setattr(event, name, value)

setup.py

@@ -4,7 +4,7 @@
 
 setuptools.setup(
     name = "riemann-client",
-    version = '3.0.2',
+    version = '3.0.3',
 
     author = "Sam Clements",
     author_email = "sam.clements@datasift.com",