Native Mp4, Webm, Ogv video support.

Implemented native support for mp4, webm and ogv video files. 

Tries to detect if the browser supports the video format using `canPlayType` function. The function will return the strings `probably`, `maybe` or ` `. It will add the inline video player if the function returns `probably` or `maybe`. You can never be sure if the browser fully supports the video format until it plays. But this should cover 99%.

Browsers tested:

* Google Chrome 35.0.1916.153 m
* Opera 22.0.1471.70
* Firefox 30.0

Using Windows 8.1 64-bit
we'll want this out if we merge of course :-)