Pass controllerId explicitly in RemoteApi script.

It seems the regular way for the controller to get its own ID
doesn't work in a RemoteApi context.
Add utility to refresh all wrappers in place.

Also remove the controllerId optional parameters to S3Config utility
functions.  It's just simpler to hardcode
LanternControllerConstants.CONTROLLER_ID when deploying a version
to run RemoteApi scripts on it.
Merge branch 'master' of github.com:getlantern/lantern-controller