version: update to 0.4.0 (#34)

Author: yugangw-msft

adal/__init__.py

@@ -27,7 +27,7 @@
 
 # pylint: disable=wrong-import-position
 
-__version__ = '0.3.0'
+__version__ = '0.4.0'
 
 import logging
 

setup.py

@@ -44,7 +44,7 @@
 
 setup(
     name='adal',
-    version='0.3.0', #note, same string exists in __init__.py
+    version='0.4.0', #note, same string exists in __init__.py
     description=('The ADAL for Python library makes it easy for python ' + 
                  'application to authenticate to Azure Active Directory ' + 
                  '(AAD) in order to access AAD protected web resources.'),