(#195) - fix coverage

Apparently istanbul got smarter at some point and caught that
in create-view.js at the line:

    view.seq = lastSeqDoc ? lastSeqDoc.seq : 0;

The first condition was never occurring, due to the caching.
Closing the database and opening another one susses this out.
(#196) - add stale option to http
(#198) - update_after should actually update after

It seems there was a bug where update_after wouldn't
actually cause the query to return immediately, and
instead would still force the user to wait for the
results to be built up.  This fixes that.