Added AJAX

Sorry for the long silence, I was dealing with some stuff. But anyways, I added support for AJAX to the site. This means that the browser window won't be reloaded with every single action (click on a link/button), which will make the experience more swift and on slow connections more enjoyable. It is currently only in few places, but the core logic is done, so more will come soon. It works on the Buildings page and in Training.

Save webapp shortcut to iPhone: tap and then Add to homescreen. (tap to close)