Bump up version (0.4rc3)

Author: lmantill

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name="radicalpy",
-    version="0.4rc2",
+    version="0.4rc3",
     license="MIT",
     author="Lewis M. Antill",
     author_email="lewismantill@gmail.com",