publishables can be republished by authors afterr 1ˢᵗ publication.

[#54724280][#64260190]
https://www.pivotaltracker.com/story/show/54724280
https://www.pivotaltracker.com/story/show/64260190
Add publication details to edit views.

[#64260216]

https://www.pivotaltracker.com/story/show/64260216
publishable.rb Fix bug related to publish / vs republish URLS.
Give sequences a name, so that they have the same interface as activities
Shorten text on publication menu.
Add tiny date info for publication status.
Add a button to republish while editing.