Updated version number to signify an incompatible API change.

Author: Roland Hedberg

setup.py

@@ -66,7 +66,7 @@ def run_tests(self):
 
 setup(
     name='pysaml2',
-    version='1.2.0beta',
+    version='2.0.0beta',
     description='Python implementation of SAML Version 2 to be used in a WSGI environment',
     # long_description = read("README"),
     author='Roland Hedberg',