Super simple webcam snapshots

• Camera.init({ /* options object */ });

  Example Config
  {
     height: 320,
     width: 240,
     rootEle: #my-camera
     canvas: #my-canvas
  }
  

    ####Options object takes in:####
    	- height: video camera height. also canvas height if you don't provide your own canvas element.
    	- width: video camera width. also canvas width if you don't provide your own canvas element.
    	- rootEle: element selector you want the video element to appear in.
    	- canvas: optional element selector. pass if you want to write to your own user defined canvas element.


- ``` Camera.snapshot( /* optional callback */); ```

    - Takes a snapshot and writes it to the canvas object. Optional callback gets passed the data-uri of the image.

Camera.snapshot(function(data_uri_string) { ... do something with data_uri ... });

- ``` Camera.getURI() ```

    - Returns the data uri for the currently taken photo.