Keyframes now belong to actors.

Refactors code so that keyframe data is accessed via the current actor
rather than directly.  Encapsulates Kapi.Actor with ActorModel.

Squashed commit of the following:

commit 3be29a0346ca363797f572d614e94b94210f2cb6
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sun Jun 16 11:40:25 2013 -0700

    Removes a comment and rebuilds v.0.0.2.

commit 6057d01870d5790a5f7fc9615ea16d679926905c
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sun Jun 16 10:43:44 2013 -0700

    Encapsulates Kapi.Actor methods in the actor Model and does some cleanup.

commit e4c4b08826996cbc7141d9345faec5f34c9696fb
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sun Jun 16 10:13:10 2013 -0700

    Builds v0.0.2.

commit 1d4a4b4af620b920e2213c121940404c51939e18
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 15 17:30:56 2013 -0700

    Encapsulates KeyframeCollection methods with ActorModel methods.

commit 2ff4d99b9c60c9faeff0c130f610051f1e491db6
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 15 17:06:28 2013 -0700

    Refactors how milliseconds are handled in the Models.

commit d19cbba9f99d77374c5ac69461bc3596fa1cb108
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 15 16:52:58 2013 -0700

    Refactors away setKeyframesFromDOM.

commit 5113bbd7ba2baab8a4b42676c2c5e873f533af5b
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 15 16:33:17 2013 -0700

    Changes ownership of the Keyframes Collection to the Actor Model.

commit 9b7b847ccd63b8180e00a41fff08b1723cbe0679
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 8 20:03:06 2013 -0700

    Encapsulate Kapi.Actor#keyframe in the Actor model.

commit 70e88099f1982549890b7c49bcf16d08b4948db3
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 8 19:42:46 2013 -0700

    Replaces app.config.currentActor with ActorCollection#getCurrent.

commit edc1af53c2c3b8e9e1b69bbb361ef4062d8e295d
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 8 16:51:13 2013 -0700

    Refactors more actor/keframe logic into init.js.

commit 0d2574f0a9a9a4f5cbdfa3237d080e4cd2ab05fc
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 8 16:34:15 2013 -0700

    Refactor Actor initialization into init.js.

commit 561e6881d227213d4e79513747d6e8fd8070c882
Author: Jeremy Kahn <jeremyckahn@gmail.com>
Date:   Sat Jun 8 16:23:56 2013 -0700

    Starts on plumbing for Actor Model and Collection.