Add TouchSwipe capability

* Added 2 new properties: 'useTouch' & 'swipeDirection'
* 'setTouch' function checks for required plugin and displays a warning if it's not initialized
* Swipe direction can be set to 'horizontal' or 'vertical' - useful for moving animations

Required plugin: TouchSwipe by Matt Bryson
URL: https://github.com/mattbryson/TouchSwipe-Jquery-Plugin

Signed-off-by: Ladislav Jochman <l.jochman@zone42.sk>