Single image

[TrueNeophyte]

When a single image is used in the slider. It will attempt to fade from and to itself and will then suddenly disapper after fade, I made a simple fix that will simply not play if there is only one image.

Line 68, change:
this.play();

into :
if ( this.element.select('a').length > 1 )
this.play();

This will prevent the play function from running if there is only one element.