release version bump

Author: [email protected]

setup.py

@@ -5,7 +5,7 @@
 
 setup(
     name='rsocket',
-    version='0.3.dev2',
+    version='0.3.dev3',
     description='Python RSocket library',
     long_description=long_description,
     long_description_content_type='text/markdown',