android and ios achievements.

android/AndroidManifest.template.xml

@@ -15,6 +15,8 @@
       android:hardwareAccelerated="true"
       android:largeHeap="true"
       android:label="Tick's Tales">
+     <meta-data android:name="com.google.android.gms.games.APP_ID"
+            android:value="@string/app_id"/>
     <activity android:name="advent.core.SplashActivity"
               android:theme="@android:style/Theme.Translucent.NoTitleBar"
               android:screenOrientation="landscape"