An exporter for *Collada*.
		
		Collada is a
		file format for robust representation of scenes, materials, animations, and other 3D content in an xml format.
		This exporter only supports exporting geometry, materials, textures, and scene hierarchy.
		
		// Instantiate an exporter
		var exporter = new THREE.ColladaExporter();
		// Parse the input and generate the ply output
		var data = exporter.parse( scene, null, options );
		downloadFile(data);
		
		
Creates a new [name].
		[page:Object input] — Object3D to be exported
		[page:Function onCompleted] — Will be called when the export completes. Optional. The same data is immediately returned from the function.
		[page:Options options] — Export options
		
		Generates an object with Collada file and texture data. This object is returned from the function and passed into the "onCompleted" callback.
		
		{
			// Collada file content
			data: "",
			// List of referenced texures
			textures: [{
				// File directory, name, and extension of the texture data
				directory: "",
				name: "",
				ext: "",
				// The texture data and original texture object
				data: [],
				original: <THREE.Texture>
			}, ...]
		}
		
		
[link:https://github.com/mrdoob/three.js/blob/master/examples/js/exporters/ColladaExporter.js examples/js/exporters/ColladaExporter.js]