Dutch translations

@loudenvier, thanks for creating kendo-global, it helped me with creating a solution to localize the Kendo controls in my AngularJS app.
Here are the Dutch (nl-NL) translations.
 
My app loads a JSON file with all the resources, and sets the labels for the KendoUI controls with it:

``` js
function initKendoLabels(){
	// Loop through all Components
	for(var componentName in Localize.labels.Controls){
		var component = Localize.labels.Controls[componentName];

		// Loop through all options within that component (eg: 'messages' or 'operators)
		for(var optionName in component){
			var optionLabels = component[optionName];

			// Extend the KendoUI labels for the current option
			if(kendo.ui[componentName] !== undefined){
				$.extend(kendo.ui[componentName].prototype.options[optionName], optionLabels);
			}
		}
	}
}
```

I think it might be a good idea to change the format of the localization files to something like this (1 object containing all the labels, + a simple function to set the labels from this object into Kendo).

I will open an issue about this idea where I will explain it further.