Add support for The WebGL Globe

[stamparm]

http://www.chromeexperiments.com/globe https://github.com/dataarts/webgl-globe

[stamparm]

Data Format:

The following illustrates the JSON data format that the globe expects:

var data = [
    [
    'seriesA', [ latitude, longitude, magnitude, latitude, longitude, magnitude, ... ]
    ],
    [
    'seriesB', [ latitude, longitude, magnitude, latitude, longitude, magnitude, ... ]
    ]
];