Updating to a Play 2.2.x application

Updating gitignore
Adding Bootstrap CSS and JS
adding function to capture direction of keypress
Adding javascript function to accept input and return game result.
Displays output to console
oops, broke the build :)   Updating to correct function/routes names
Adding some code to make initial 4x4 grid for UI
Updating for better layout on large screen devices.
Updating for better visual color shading.
updating logic for shading colors to logarithmic so its more smooth
Setting application root
Updating logic to return the calculated score.

It's getting late, this code is in need of some serious refactoring
Updating front end to display score