Added a Synchronized metaclass.
Added a Synchronized metaclass.

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