This Google+ iOS SDK allows users to sign in and share with Google+ from
third-party apps.  The SDK also provides Google+ APIs for the app to access
the list of people in user-selected circles and to read and write user's app
activities.  The SDK contains the following files:

README  -- This file.

Changelog  -- The versions and changes of the SDK.

lib/  -- Header files and libraries.
  GPPDeepLink.h -- Header file to include for sharing with Google+ with content
                   deep linking.
  GPPShare.h -- Header file to include for sharing with Google+.
  GPPSignIn.h -- Header file to include for signing into Google+.
  GPPSignInButton.h -- Header file to include for showing a button to
                       sign in with Google+.
  libGooglePlus.a -- Static library built for iOS device to link into your app.
  libGooglePlusUniversal.a -- Static library built for both iOS device and
                              simulator to link into your app.

OpenSource/  -- Google open source files used by the SDK. Add all files in this
                directory into your project if you're not already using them.
                Also see comments for the subdirectory below.
  GTL/ -- Google open source files only used by the sample app. Include them
          into your project if you're going to use the same functionality,
          e.g. writing user's app activities.

Resources/  -- Resources that can be used in your app.
               For |GPPSignInButton|, the gpp_sign_in_*.png images
               are required.

SampleCode/  -- Sample code for your reference only.
                Do not include this in your project.
   GooglePlusSample.xcodeproj/  -- The Xcode project.
