The example, chat.hs, requires stm-lifted and conduit-combinators
which are not dependencies of yesod-websockets. Installing the extra
packages needed for the chat.hs example can be installed with the
command:
$ cabal install stm-lifted conduit-combinators
TIMEOUTS
Versions of yesod-websockets prior to 0.2.1 may experience session
timeouts after about 30 seconds of inactivity. Refer to the patch in
the websockets library which addresses this issue:
