http-easy connections are pooled, and streaming responses does not
automatically close the response (they are closed automatically in
other situations). After 128 (the default) opened connections to fetch
images, the pool ran out of connections, and future attempts would
just time out waiting for a connection.
Fixed by manually closing the connection at the correct time.
* Create homepage
* Page data is automatically reloaded (except when compiling)
* Entrypoint is breezewiki.rkt for running and dist.rkt for compiling
* Include stack trace when sending error messages
