Requests a resource using JSONP.
    
    
    
    
    
    
        
| Name | Type | Description | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| url | String | The URL to request. | ||||||||||||||||
| options | Object | optional
                
                
                
            
                Object with the following properties: 
 | 
Returns:
    a promise that will resolve to the requested data when loaded.
        
    
    
Example:
// load a data asynchronously
Cesium.loadJsonp('some/webservice').then(function(data) {
    // use the loaded data
}).otherwise(function(error) {
    // an error occurred
});