Add ability to go Full Screen in modern browsers and the ability to auto change to next photo.

Hi, I added two new options. Set fullScreen to true will launch the swipebox in full screen in Chrome, Firebox and Opera. Not tested in mobile browser. By default it is disabled. The other option autoSwipeDelay is the time in milliseconds that swipebox will wait to auto swipe to next photos. By default it is disabled too. Hope this two options make this amazing plugin better.