bump version to 0.4.0

Author: gkorland

setup.py

@@ -10,7 +10,7 @@ def read_all(f):
 
 setup(
     name='redisbloom',
-    version='0.3.3',
+    version='0.4.0',
     description='RedisBloom Python Client',
     long_description=read_all("README.md"),
     long_description_content_type='text/markdown',