Studio = function Studio(options, extra){
  "use strict";
    if(typeof options === 'string'){
        return _Studio.ref(options, extra);
    }
    return _Studio.service(options, extra);
}
@function
@name services
@desc Gets a reference for all services available on Studio. 
This function is available only if Proxy is enabled (node > 6 or older version with --harmony-proxies flag)
@example
var allServices = Studio.services();// A reference for all services
var myServiceRef = Studio('myService');//Returns a reference for a service called myService
var myServiceRefFromProxy = allServices.myService;//a reference for a service called myService
// For an object inside a module
var fooModule = Studio.module('foo');
var barServiceRef = fooModule('bar');
var barServiceRefFromProxy = allServices.foo.bar;