Locally served, 4.4.1 update

Hi Nate,

When I use your version of the plugin I am getting a failed HTTP request for `http://vjs.zencdn.net/4.1/video.js.map`, perhaps because the video.js people have removed an older file from their CDN.

In any case, creating the `<script>` tags and loading the file creates issues because you cannot determine when the library is loaded.  Using the Meteor package system to load the files ensures that the video-js library will be loaded before any application code tries to use it.

Please consider merging this in, I've tested it on pages that load a video [after the page has been loaded](https://github.com/videojs/video.js/blob/stable/docs/guides/setup.md#alternative-setup-for-dynamically-loaded-html), and on pages where the [template is already in place](https://github.com/videojs/video.js/blob/stable/docs/guides/setup.md#step-2-add-an-html5-video-tag-to-your-page) and the video loads automatically.