Version Differences for Google Play Game Services

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[https://github.com/TheInvader360/libgdx-gameservices-tutorial A sample GPGC application] 
 
[https://github.com/TheInvader360/libgdx-gameservices-tutorial A sample GPGC application] 
 
 
 
 
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[http://stackoverflow.com/questions/12214467/how-to-obtain-signing-certificate-fingerprint-sha1-for-oauth-2-0-on-android]  
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[http://stackoverflow.com/questions/12214467/how-to-obtain-signing-certificate-fingerprint-sha1-for-oauth-2-0-on-android How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?]