Mostly works with Elm 0.8 now

Manually merged in evancz's nonlinear slide transition
Increased framerate to 60fps
Importing into other modules seems broken. Need to look into that
Updated Preselm to work with Elm 0.8.0.3

Still need to fix y coordinates on the Selection Box
Finished adding type signatures

Including the type signatures improves compilation of Tutorial.elm
to be over 10x faster on my machine!