Playing around with opacities on exit image.

Playing around with opacities on the exit image to make it "glow" a bit
when you hover over it.  Basically looking for a cheap way to make it
look like an actionable item on the screen without having to provide a
secondary image.
Animation Improvements and naming changes

Changed names to be more consistent and match the napkin-tour name so
that it is less likely override any existing class or images.
Changed some order of operations to make the initial fade in look a
little smoother.