Added a service worker for handling some notifications.
Added a service worker for handling some notifications.

djfye/RocketMap,djfye/RocketMap,djfye/PokemonGo-Map,djfye/PokemonGo-Map,djfye/PokemonGo-Map,djfye/RocketMap,djfye/PokemonGo-Map,djfye/RocketMap