Increase version to 0.4.0

Author: iustin

setup.py

@@ -30,7 +30,7 @@
 implements POSIX ACLs manipulation. It is a wrapper on top
 of the systems's acl C library - see acl(5)."""
 
-version = "0.3.0"
+version = "0.4.0"
 
 setup(name="pylibacl",
       version=version,