Update ADAL_Internal.h
Update ADAL_Internal.h

Update version to beta 4
msftberlin/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,msintuneappsdk/azure-activedirectory-library-for-objc,msftberlin/azure-activedirectory-library-for-objc,msintuneappsdk/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc