Actually echo an item's stdout to the dashboard.
A CouchDB view to locate archive URL records.  #18.
Increase comment readability.
Dashboard: remove global MessageProcessor.

The only real benefit to this (so far) is that I didn't like seeing
"Dashboard.messageProcessor" everywhere, and this commit satisfies my
need to get rid of it.  Whether threading object references through
bindings is any better is an open question.