Reverted master to pre-pull req #8 and #9 status. These now reside in the `dev` branch.
setOption work
Merge branch 'dev' into dynamicAttributeUpdating

Conflicts:
	src/ShaderParticleEmitter.js
	src/ShaderParticleGroup.js
Merge branch 'dev' into dynamicAttributeUpdating

Conflicts:
	src/ShaderParticleGroup.js
Whitespace formatting.
Moved float/vector creation/randomization functions to seperate utils file to be more DRY.
Updated dynamic property setting.
Updated build files
Fixed merge bug with angleAlignVelocity
Added radiusScaleClamp property.
Moved planetPosition to Group.
Added support for only updating dead particles when parameters change
Rebuilt min version
Removed gravity experiments. Updated examples to use new properties
Updated README. Grunted build
Removed old playground folder
Updated package version
`static` -> `isStatic`. Tabs -> spaces. Removed gravity playground.
Bumped version number to 0.7.0 and updated headers.
Merge branch 'dynamicAttributeUpdating' into dev

Conflicts:
	README.md
	build/ShaderParticles.js
	build/ShaderParticles.min.js
	examples/sphere.html
	package.json
	src/ShaderParticleEmitter.js
	src/ShaderParticleGroup.js
Fixed issue with dynamicAttribute example.