tools: Update Google One-Click Deploy configuration

[malexw]

The app name previously was fairly generic, so I've updated it to be more specific to the application we're deploying.

There was also an issue with the "default" field, which doesn't actually exist in the spec, and should be "value".

[CLAassistant]

All committers have signed the CLA.

[malexw]

This needs another round of testing before we merge

[tianjing-li]

@malexw I'll be closing this since it's now duplicated by Eugenes changes