Support for linking with Google Play Services, also fixed Proguard config

project/java/CloudSave.java

@@ -0,0 +1,42 @@
+/*
+Simple DirectMedia Layer
+Java source code (C) 2009-2014 Sergii Pylypenko
+
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required. 
+2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+package net.sourceforge.clonekeenplus;
+
+import android.app.Activity;
+import android.content.Intent;
+
+// Stub class for compiling without cloud save support
+class CloudSave
+{
+	public CloudSave(MainActivity p)
+	{
+	}
+
+	public void onStart() {
+	}
+
+	public void onStop() {
+	}
+
+	public void onActivityResult(int request, int response, Intent data) {
+	}
+}