Move web-animation-js to dependencies & add it to neon-animation.html (2.0-preview)

[samuelcardillo]

The branch 2.0-preview had some modifications in the bower.json, one of them is actually pretty weird as web-animation-js is moved in devDependencies instead of dependencies so bower doesn't download/unpack it if the right flash isn't set.

Would it not be more logical to put it back in dependencies?

Also, adding the web-animations.html in neon-animation.html so it doesn't need to be an additional import?

[Haprog]

Still still affects 2.0.1 (and not just the old 2.0-preview).