Broken since 2013-08-22 "* lisp/erc/erc.el: Use lexical-binding".
* lisp/erc/erc.el (erc-message-parsed): New variable.
(erc-display-message): Dynamically bind it.
(erc-lurker-update-status): Check it instead of using `parsed'
directly. This results in `erc-lurker-state' being properly updated
to keep track of non-lurkers, and thus `erc-lurker-p' returning
correct results rather than return t for everyone.
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