xbmc/xbmc — pull request #2497 by ulion (2013-03-25 04:24:17+00:00)
Title: Picture/SlideShow support rotate picture by swipe up/down.

rotate picture is not easy on touch screen which need 2 fingers and rotate currently.
this PR added an easy way to rotate 90/-90 degrees by swipe up/down on screen left/right.