Log undefined variables.

I think it would be a good idea to have the log function be able to handle undefined values. I was easy enough to add this in as a wrapper, but I had an annoying 45 minutes trying to track down the culprit of a crashing bug. I just think it would be nice to distinguish between "You logged an undefined varable." and "Undefined variable somewhere in your code crash."

what like log("" + thing);

My suggestion is that if thing is undefined then don't crash out just log that it's undefined. log(thing); //thing is undefined and that information makes it to the console without a crash

Well that sure was quick. Thank You.