Bump version to 0.0.1-dev4

Author: SebastiaanZ

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name="async-rediscache",
-    version="0.0.1-dev3",
+    version="0.0.1-dev4",
     description="An easy to use asynchronous Redis cache",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",