Skip preupdate/update for PIXI hierarchies in which an ancestor doesn't exist
Merge pull request #210 from cocoademon/skip_pixi_updates

Skip preupdate/update for PIXI hierarchies in which an ancestor doesn't exist
Fix a silly mistake in skip preupdate/update for PIXI objects
Remove references to GameMath, it's just Math now
Throw exceptions if wrong format given to tilemap or textureatlas. Previously, old onload remained active and error happened in the wrong (and hard to diagnose) place.
ShaderToy convertor up and working, lots of shaders being turned into Pixi filters :)
Loads more shaders and some fixes and enhancements to PixiShader
Heroku shader conversion :)
Merge pull request #211 from cocoademon/fix_skip_children

Fix a silly mistake in skip preupdate/update for PIXI objects
Merge pull request #212 from TheJare/dev

Fixes to Math and Loader
Added Phaser.Filter and started moving the shaders over into their own filter classes, so they won't all get bundled in unless needed.
Opps forgot to fix a rogue filter which caused the lib to crash.
New Fire filter.
Fix normalizeAngle and wrapAngle (again?)
Add JSHint configuration.
New Timer class and scale event updates.
Merge pull request #225 from kevinthompson/kt/jshint

Add JSHint configuration.
Updated JSHint configuration, README and started working through source files against JSHint.
Merge pull request #218 from TheJare/dev

Fix normalizeAngle and wrapAngle (again?)
README update, Loader audio path fix and Tween.isRunning fix.
Documentation updates