Add `publish()` to all spec objects (compoonent, run, repo, etc.) that is shortcut for creating default `wr = WebRegistry(<local or heroku>)` and calling `self.to_registry(wr)`

[andyk]

Add `publish()` to all spec objects (compoonent, run, repo, etc.) that is shortcut for creating default `wr = WebRegistry()` and calling `self.to_registry(wr)`