fix application initialization

Author: Mihail Slavchev

build/project-template-gradle/src/main/java/com/tns/NativeScriptApplication.java

@@ -14,7 +14,6 @@ public NativeScriptApplication()
 
     public void onCreate() {
 		new RuntimeHelper(this).initRuntime();
-        Platform.initInstance(this);
         java.lang.Object[] params = null;
         com.tns.Platform.callJSMethod(this, "onCreate", void.class, params);
     }

build/project-template-gradle/src/main/java/com/tns/RuntimeHelper.java

@@ -109,6 +109,7 @@ public void initRuntime()
 			ThreadScheduler workThreadScheduler = new WorkThreadScheduler(new Handler(Looper.getMainLooper()));
 			Platform.init(this.app, workThreadScheduler, logger, appName, null, rootDir, appDir, classLoader, dexDir, dexThumb);
 			Platform.runScript(new File(appDir, "internal/ts_helpers.js"));
+			Platform.initInstance(this);
 			Platform.run();
 		}
 	}