Issues with automated publication

[huitseeker]

Some rought spots publishing 0.2.0 with @porcuquine today:

1. check the cargo release version, folks don’t update this one frequently
2. the Makefile publishes all tags, that’s not good if the operator’s local tags include those form a remote of the forked project,
3. the packages are interdependent, so we need to instruct cargo-release on the dependency,
4. and we probably need some massaging with cargo-release so that the path dependency from bellpepper-core to bellpepper doesn’t prevent the operator from publishing.