Version 0.5.1, add Dampening to Alerts, fix Python 2.7 incompabitility in auth

Author: burmanm

setup.py

@@ -18,7 +18,7 @@
 
 
 setup(name='hawkular-client',
-      version='0.5.0',
+      version='0.5.1',
       description='Python client to communicate with Hawkular server over HTTP(S)',
       author='Michael Burman',
       author_email='miburman@redhat.com',