Weekly release.

Updating version to v0.9.1.0
Adding support to show buckets organized per location (#165)
Hide empty zones (#166)
List machines in a flat list (#164)
Merge pull request #156 from GoogleCloudPlatform/cloud_sql
Merge remote-tracking branch 'origin/q3_master' into cloud_sql
Fixing application name (#160)
Added link to latest binaries.
Add analytics events for opening the dialog to update a Cloud SQL's authorized networks and a command when the authorized networks are udpated.
Merge remote-tracking branch 'origin/q2_master' into cloud_sql
Remove adding and removing a single authorized network for a Cloud SQL instance and add support to manage all the authorized networks for the instance.
Remove test prompt
Fix spelling errors
Add proper error handling/messages for authorizing/revoking machine access to database instances and adds analytics for these commands.
Add a polling service for tasks to handle cancelations and timeouts.
Update and add more comments for Cloud SQL classes.
Misc clean up
Add resources for strings in the Cloud SQL instance view model to allow for easier localization.
Merge remote-tracking branch 'origin/q2_master' into cloud_sql
Allow the user to easily grant and revoke access to a database for the current machine.
Add a status menu item to the cloud sql root