Error earlier when people try to deploy a temporary board #193
Description
Currently, when people try to deploy a model from a temporary pins board, the deployment will successfully complete and then error on API startup. On deployment, raising an error that you're trying to deploy a model from a temporary board would be a more elegant failure.
One place that this might be painful is in testing situations, but I think tearing down boards after/using temporary directories would be an okay workaround.