Little fix for consistence.
Merge branch 'touch-support' of https://github.com/chapmanu/digital-signage into touch-support
Updates for edge cases

When there is only 1 slide, when there is only 1 slide and a directory.
 When you take slides out/put slides in.
Merge branch 'touch-support' of https://github.com/chapmanu/digital-signage into touch-support