bump version to 0.4.0

Author: leondutoit

setup.py

@@ -4,7 +4,7 @@
 
 setup(
     name='pypg-iam',
-    version='0.3.0',
+    version='0.4.0',
     description='python library for pg-iam',
     author='Leon du Toit, Milen Kouylekov',
     author_email='dutoit.leon@gmail.com',