fetch logs from all app versions, not just default
drop ajax javascript for fetching responses and publishes; new ui doesn't need it
new ui tweaks: page title, redirect /listen and /publish, template refactorings
more new ui tweaks: publish/listen UI layout, better disable messages
update user-visible HTML in publish webmention endpoints to point to front page
add custom intro message for publish (vs listen)
first pass at publish docs

fixes #88