While using RequireJS to AMD load ng-planetaryjs, planetaryjs, and their
dependencies, ng-planetaryjs still looks for global object planetaryjs
(such as in `var globe = planetaryjs.planet();`). Thus use the UMD
pattern "AMD with global, Node, or global" instead of "AMD, Node, or
browser global" from https://sublime.wbond.net/packages/UMD%20snippets