2.0
===

``pmxbot`` plugin now requires that the "Wolfram|Alpha API key"
config parameter be supplied. The hard-coded key has been
removed and will be de-activated. Users must register for their
own key at the `Wolfram|Alpha developer web site
<https://developer.wolframalpha.com>`_.

1.4
===

Add pmxbot module and plugin, superseding pmxbot-wolframalpha package.

1.3
===

Moved hosting to Github.