Logging in with a different oauth user will fail

[azinman]

If you've logged in successfully once with a given user, alice@google.com, and then attempt to login with bob@google.com's oauth then an error similar to this one will appear:

verror.NoAccess: Access denied: Dice Roller: [dev.v.io:o:766627046005-6i3ip6i5fd80hhioifr9kfnr25c70kfq.apps.googleusercontent.com:aaron@empiric.al] does not have Write access (rejected blessings: []))

One must delete the rootDir and relogin.