Some small fixes for the "Accessing APIs" tutorial

[ndbroadbent]

I'm following the tutorial at https://developers.google.com/games/services/android/init, and these are a few little things that tripped me up. For instance, I had no idea why BaseGameUtils.resolveConnectionFailure was complaining about me passing an int instead of a String, but that was just a bug in the original BaseGameUtils code. (R.string.sign_in_other_error is actually an int, and you need to call getString() on the resource id.)

I also added the missing sign_in_other_error string from the tutorial, because I'm not sure why that was excluded.

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[ndbroadbent]

I signed it!

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[stolk]

This fix only changes the BaseGameUtils, but the samples themselves still try to pass a string, causing the build to fail:

E.g. ButtonClicker, MainActivity.java does:

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
  Log.d(TAG, "onConnectionFailed() called, result: " + connectionResult);

  if (mResolvingConnectionFailure) {
    Log.d(TAG, "onConnectionFailed() ignoring connection failure; already resolving.");
    return;
  }

  if (mSignInClicked || mAutoStartSignInFlow) {
    mAutoStartSignInFlow = false;
    mSignInClicked = false;
    mResolvingConnectionFailure = BaseGameUtils.resolveConnectionFailure(this, mGoogleApiClient,
        connectionResult, RC_SIGN_IN, getString(R.string.signin_other_error));
  }

  switchToScreen(R.id.screen_sign_in);
}

Error:(485, 52) error: incompatible types: String cannot be converted to int

The examples themselves need to be adjusted as well.