Graham Digital changes to the Library

We did a few things in this pull request, which is at request of Michael Dale:
* First, we needed a 64-bit build, starting in February, Apple will not accept applications without a 64-bit build into the store.
* The included Widevine library was only built for 32-bit systems, we do not use this library, so we removed it.
* Updated the Google Chromecast SDK, which was slightly backwards incompatible, so we would have the 64-bit version.
* Added a script to the build process so we could quickly get a Universal Binary from the build command to include in our projects.
* Support requested we load a URL from cdnapi.kaltura.com as opposed to the kgit.html5video.org, the current API requires any URL to match the html5video format. This might not have been the most elegant way of doing this.