Fix for RFE #818993, smarter PeriodicFileDownloader.
Fix for RFE #818993, smarter PeriodicFileDownloader.

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