Release v0.8.0 (#119)

diff --git a/setup.py b/setup.py
index 324d72c..5f72e00 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
 
 setup(
     name='google-auth',
-    version='0.7.0',
+    version='0.8.0',
     author='Google Cloud Platform',
     author_email='jonwayne+google-auth@google.com',
     description='Google Authentication Library',