rename UPGRADE_META_VERSION_CURRENT to UPGRADE_META_VERSION_LATEST
rename UPGRADE_META_VERSION_CURRENT to UPGRADE_META_VERSION_LATEST

wonderpush/wonderpush-ios-sdk,wonderpush/wonderpush-ios-sdk,wonderpush/wonderpush-ios-sdk,wonderpush/wonderpush-ios-sdk,wonderpush/wonderpush-ios-sdk