Cut release of vision API. (#3677)

Also bumping the version on the uber-package.

Author: dhermes

vision/setup.py

@@ -37,7 +37,7 @@
     author='Google Cloud Platform',
     author_email='googleapis-publisher@google.com',
     name='google-cloud-vision',
-    version='0.25.0',
+    version='0.25.1',
     description='Python Client for Google Cloud Vision',
     long_description=readme,
     namespace_packages=[