test dependency injection

src/moto/license.js

@@ -10,6 +10,7 @@
         module.exports = terms;
     }
 
+    // allow license to be required() by app without gapp
     if (typeof(self) !== 'undefined' && self.gapp) {
         let app = self.gapp;
         app.license = terms.LICENSE;

src/moto/space.js

@@ -3,7 +3,10 @@
 "use strict";
 
 (function() {
-    gapp.register('moto.space');
+    gapp.register('moto.space', [
+        'add.array',    // dep: add.array
+        'moto.orbit'    // dep: moto.orbit
+    ]);
 
     let MOTO = self.moto = self.moto || {},
         WIN = window,