Cut releases of core, error reporting, pubsub, spanner and storage. (#3340)

Also updating the umbrella/uber package along the way.

Author: dhermes

packages/google-cloud-core/setup.py

@@ -61,7 +61,7 @@
 
 setup(
     name='google-cloud-core',
-    version='0.24.0',
+    version='0.24.1',
     description='API Client library for Google Cloud: Core Helpers',
     long_description=README,
     namespace_packages=[