HW tournament statistics analyzer.

Implemented banner caching. I won't disable it again. How to install? Go to your profile http://heroes3stat.appspot.com/rating/overall/ihromant, scroll to the very bottom, and you'll find the URL there. Paste it into the `img` tag in your signature. The banners will (at least, they should) update every 20 hours. Thanks to Gunar for making everything work perfectly after I explained it to him. Gunar isn't a dumb SMOrc.