add package.json for npm distribution
add package.json for npm distribution

orcasgit/PushNotification,baststar/PushNotification,orcasgit/PushNotification,baststar/PushNotification,baststar/PushNotification,orcasgit/PushNotification,baststar/PushNotification,baststar/PushNotification,orcasgit/PushNotification,orcasgit/PushNotification