Run jshint as part of build process.
Trim trailing whitespace.
Fix jshint issues in src/tilemap
Fix jshint issues in src/particles/arcade
Fix jshint issues in src/physics/arcade
Fix jshint issues in src/physics/ninja
Fix jshint issues in src/physics/p2
Fix jshint issues in src/utils
Fix jshint issues in src/animation
Fix jshint issues in src/tilemap
Fix jshint issues in src/core
Fix jshint issues in src/loader
Fix jshint issues in src/input
Fix jshint issues in src/geom
Fix jshint issues in src/gameobjects
Fix jshint issues in src/Phaser.js
Constrain Windows Scripting Host env to Loader.js
Enable jshint `immed` flag.
Unsuppress warnings for things that don't appear in the codebase.
Add filters to jshint task.