mark version as dev for release experiment

Author: gabis-precog

setup.py

@@ -5,7 +5,7 @@
 
 setup(
     name='rsocket',
-    version='0.4.1',
+    version='0.4.1.dev1',
     description='Python RSocket library',
     long_description=long_description,
     long_description_content_type='text/markdown',