GameActivity: check for VIBRATE permission on Android

While we add this permission by default, if a developer sets custom permissions, we want to avoid crashing when we try to access an API that we don't have permission to use

templates/android/template/app/src/main/java/org/haxe/lime/GameActivity.java

@@ -3,6 +3,7 @@ package org.haxe.lime;
 
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.content.res.AssetManager;
 import android.net.Uri;
 import android.os.Build;
@@ -16,6 +17,7 @@ import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
 import android.view.View;
 import android.webkit.MimeTypeMap;
+import android.Manifest;
 import org.haxe.extension.Extension;
 import org.libsdl.app.SDLActivity;
 
@@ -110,7 +112,13 @@ public class GameActivity extends SDLActivity {
 		super.onCreate (state);
 
 		assetManager = getAssets ();
-		vibrator = (Vibrator)mSingleton.getSystemService (Context.VIBRATOR_SERVICE);
+
+		if (checkSelfPermission(Manifest.permission.VIBRATE) == PackageManager.PERMISSION_GRANTED) {
+
+			vibrator = (Vibrator)mSingleton.getSystemService (Context.VIBRATOR_SERVICE);
+
+		}
+
 		handler = new Handler ();
 
 		Extension.assetManager = assetManager;