Obvious/pipette — pull request #9 by danfuzz (2012-06-28 17:51:46+00:00)
Title: Always include a `close` event after `error` events.

This makes some coding patterns much simpler.

Note: This is an intermediate check-in. I expect to change to how the
filter classes handle `close` events that they recieve, in an upcoming
change.

/cc @mikefleming
/cc @dpup

R=mike
R=dan