Added a 437 handler.
Added a 437 handler.

ProgVal/Limnoria-test,Ban3/Limnoria,jeffmahoney/supybot,Ban3/Limnoria,ProgVal/Limnoria-test,haxwithaxe/supybot,buildbot/supybot,frumiousbandersnatch/supybot-code,prashantpawar/supybot-rothbot,kblin/supybot-gsoc,raboof/supybot,mazaclub/mazabot-core,mazaclub/mazabot-core