Add date logging to ircLogBot.py

[singingwolfboy]

I downloaded ircLogBot.py from the twisted documentation, and it works great! The one problem is that it doesn't indicate what day a message was sent on. With the help of the friendly people in the #twisted IRC channel, I put together a patch to write the current date into the log file once a day at one second past midnight. I figured it would be worth contributing this patch back to the community -- please take a look at it, and if it looks good, add it to the project!

[singingwolfboy]

I discovered there was a bug in my code, and I've updated the patch.

[thijs]

Thanks for your patch singingwolfboy! Putting it up for review as described on ReviewProcess#Authors:Howtogetyourchangereviewed.

[exarkun]

Thanks for the contribution, singingwolfboy.

I think this change overly complicates the example, the primary purpose of which is to demonstrate IRC functionality. Using callLater and LoopingCall adds more concepts to stumble over.

I'm not against including the date in the log file somehow, but I think it needs to be done more simply than this, so as not to confuse people who are trying to learn about Twisted's IRC support.