Disclaimer on developer.pidgin.im

[Mark Doliner]

FYI I added a little disclaimer to the bottom of Trac.
http://developer.pidgin.im/  It seemed like a good thing to have (for
liability reasons, mostly).  If anyone has suggestions on better
wording or formatting, please let me know (or feel free to change it,
if you have access).  Specifically I added a line to near the bottom
of imperial:/srv/trac/developer.pidgin.im/templates/site.html

--Mark