Added a <number of headlines> argument to feed commands.
Added a <number of headlines> argument to feed commands.

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