temporary solution to springboard in publish-for-arch
also do not springboard from checkout, even in p-f-a
a hidden option to mark packages as unsuccessfully migrated
Revert default bind IP to 0.0.0.0.

We still use localhost as DDP_DEFAULT_CONNECTION_URL for mobile builds
if another host isn't provided; we just don't want localhost to
overwrite an unspecified host for the proxy to bind to.

Fixes #2596.