remove grunt-contrib-watch
bump to v1.5.1, add new builds
Fix for Tiling Sprites that use trimmed frames. Before they would use the trimmed frame size, rather than the actual frame size. This updates generateTilingTexture to resolve it.
Merge branch 'pixidev/dev'

Conflicts:
	src/pixi/extras/TilingSprite.js
Merge branch 'pixidev/dev'
Fixed TilingSprite not render children on canvas

TilingSprite does not render children on 2d canvas. The call to
children's renderCanvas method is missing.
Small documentation fix.
Fixed bug in gl.bindTexture which tried to use an undefined private var.
Merge pull request #579 from photonstorm/dev

Fix for Tiling Sprites that use trimmed frames.
Lowered the default size of WebGLSpriteBatch
Fixed the 'short cut' version of Math.floor in setTransform if roundPixels is true.
Merge pull request #623 from photonstorm/dev

Fixed the 'short cut' version of Math.floor in setTransform
Fixed cross domain bug
InteractionManager now traverses in reverse when looking for a hit-test. This produces more accurate results with layered containers.
Adding grunt-watch into Gruntfile and package.json. watch uses source maps for development
Merge pull request #631 from mattdesl/grunt-watch

Grunt Watch to use concat_sourcemap
Fixed AssetLoader undefined evt.loader
Merge pull request #632 from ekelokorpi/dev

Fixed AssetLoader undefined evt.loader
Merge pull request #630 from mattdesl/interactionmanager-fix

InteractionManager hit test now checks bottom-to-top
@param doc about scaleMode in Texture.fromImage