Remove newly introduced '0.0.0.0:' from `docker port`
Silence nginx reloading
an "installer" (really just config/setup) for prebuilt images (at least for now)
Mention issues with 13.10
Improve the logs command.

Check for application's existence, and add an optional -t option, to
make it behave like "tail -f" or "heroku logs -t"