WIP - Cave Level Tutorial Cutscene

I've never liked how we take people through the first tutorial cave level.  It seems clunky to force the player to read a note.  People have also been having a lot of trouble with the first logs where you have to double tap DOWN to go through.  

This pull is one possible solution to that problem.  When the player first lands on the logs text flashes on the screen with the key combination that will allow them to drop down through the obstacle.  

![screen shot 2014-08-15 at 2 04 44 pm](https://cloud.githubusercontent.com/assets/4028391/3936841/c86d754e-24a6-11e4-8851-946bad611876.png)