Removing a component should actually remove the class from DOM
Allow animation speed to be varied

This adds an `animationSpeed` property to "SpriteAnimation", which controls the rate of playback.  Includes a couple of tests.
Move Crafty.scene into a new separate file

Crafty.scene should not be in drawing.js.  This commit moves it into a new file, "scene.js".
Extend Crafty.scene to allow passing parameters

This commit allows a scene to be called with an optional parameter, which is passed to the init function of the scene.

It also adds unit tests for both the new and original functionality of Crafty.scene.
Create .defineScene and .enterScene functions

This patch splits the functionality of scene into two functions: defineScene and enterScene.

It also adds tests for this functionality, as well as checking uninit.
Merge pull request #619 from starwed/scene-param

Scene parameters
Merge pull request #636 from starwed/animation-speed

Allow animation speed to be varied
Merge pull request #635 from dkapadia/remove_component_dom

Removing a component should actually remove the class from DOM
Use official syntax for setting CSS properties.
Merge pull request #637 from starwed/image-fix

Use official syntax for setting CSS properties in "Image"
Semantic versioning in bower.js
Merge pull request #643 from starwed/bower-version

Semantic versioning in bower.js
Bump version to 0.6.1
Merge pull request #644 from starwed/ver061

Bump version to 0.6.1