Turn ES6 into plain JS (#536)
Turn ES6 into plain JS (#536)

Resolve #526
anon0429/PokemonGo-Map,Studio-XP/PokemonGo-Map,invisiblek/PokemonGo-Map,tomballgithub/RocketMap,birdstream/RocketMap,horatiulefter/pokemon,DeWenS/PokemonGo-Map,Darkknightz/PokemonGo-Map,quagliero/PokemonGo-Map,slgphantom/RocketMap,horatiulefter/pokemon,cadocruz/PokemonGo-Map,saulomarchiori/PokemonGo-Map,SilphServices/RocketMap,PiaFraus/PokemonGo-Map,berlotto/PokemonGo-Map,redswallow/pokemon-go-map,tanishbaansal/pokemongomapi,houkop/PokemonGo-Map,simonhashadenough/PokemonGo-Map,slgphantom/RocketMap,djfye/RocketMap,catnet23/PocketMap,medghaim/PokemonGo-Map,simonhashadenough/PokemonGo-Map,loquendomia/KokoxGO,markusz/PokemonGo-Map,houkop/PokemonGo-Map,patlanio/PokemonGo-Map,NickG1025/PokemonGo-MapPokeEdge,hubertokf/RocketMap,chrux/PokemonGo-Map,KoertJanssens/MasterBall.be,Shibby7986/PokemonGo-Map,catnet23/PocketMap,edgarborja/PokemonGo-Map,filmkorn/PokemonGo-Map,cadocruz/PokemonGo-Map,invisiblek/PokemonGo-Map,saulomarchiori/PokemonGo-Map,sclo012/PokemonGo-Map,MaTriXy/PokemonGo-Map,pir2/PokemonGo-Map,pgandev/RocketMap,chrux/PokemonGo-Map,redswallow/pokemon-go-map,pdong/PokemonGo-Map,marauder37/PokemonGo-Map,dev042/RocketMap,rpotpogo/PokemonGo-Map,boby361/RocketMap,potamax/maptest,simonhashadenough/PokemonGo-Map,CalcMan/PokemonGo-Map,birdstream/RocketMap,tomballgithub/RocketMap,Studio-XP/PokemonGo-Map,BallCity/PokemonGo-Map,nijave/PokemonGo-Map,alokki/PokemonGo-Map,cadocruz/PokemonGo-Map,patlanio/PokemonGo-Map,prajwalkman/PokemonGo-Map,edgarborja/PokemonGo-Map,Obihoernchen/RocketMap,pdong/PokemonGo-Map,woest85/PokemonGo-Map-1,Alderon86/RocketMap,gsabran/PokemonGo-Map,patlanio/PokemonGo-Map,alokki/PokemonGo-Map,FranManre/PokeMap,Zyrix/PokemonGo-Map,Obihoernchen/RocketMap,webycel/PokemonGo-Map,CalcMan/PokemonGo-Map,seebadoris/pkmapmons,doeiqts/PokemonGo-Map,osalivan/po-go-go,JapuDCret/RocketMap-Do,voxx/RocketMap,ultrafunkamsterdam/PokemonGo-Map-V2,JapuDCret/RocketMap-Do,BallCity/PokemonGo-Map,birdstream/RocketMap,pgandev/RocketMap,edmundlam/PokemonGo-Map,JohnLore/PokemonGo-Map,chrux/PokemonGo-Map,invisiblek/PokemonGo-Map,k0mat/PokemonGo-Map,sebastienvercammen/RocketMap,pretsell/PokemonGo-Map,creatingwake/PokemonGo-Map,Zyrix/PokemonGo-Map,NenadJAustralia/PokemonGo-Map,osalivan/po-go-go,an0ninja/PokemonGo-Map,Alderon86/RocketMap,RocketMap/RocketMap,LeluStudios/PogoMap,POPSuL/PokemonGo-Map,pkgta1/shuffle,averylarry/RocketMap,anon0429/PokemonGo-Map,doeiqts/PokemonGo-Map,darragjm/PokemonGo-Map,mpw1337/RocketMap,JapuDCret/RocketMap-Do,mpw1337/RocketMap,catnet23/PocketMap,osalivan/po-go,djfye/RocketMap,commanderjsoc/PokemonGo-Map,djfye/RocketMap,Obihoernchen/RocketMap,PiaFraus/PokemonGo-Map,creatingwake/PokemonGo-Map,sebastienvercammen/RocketMap,gsabran/PokemonGo-Map,filmkorn/PokemonGo-Map,NickG1025/PokemonGo-MapPokeEdge,sebastienvercammen/RocketMap,simonhashadenough/PokemonGo-Map,LeluStudios/PogoMap,mpw1337/RocketMap,saulomarchiori/PokemonGo-Map,delold/PokemonGo-Map,oxyrox/PokemonGo-Map,markusz/PokemonGo-Map,cristianougly/pokemongosaoleo,DarkSwatcat/PokemonGo-Map,edgarborja/PokemonGo-Map,HowDoesExcelWork/RocketMap,nijave/PokemonGo-Map,sclo012/PokemonGo-Map,ultrafunkamsterdam/PokemonGo-Map-V2,cadocruz/PokemonGo-Map,KoertJanssens/MasterBall.be,gsabran/PokemonGo-Map,markusz/PokemonGo-Map,voxx/RocketMap,Xcelled/PokemonGo-Map,annatran/PokemonGo-Map,delold/PokemonGo-Map,LTHeaven/PokemonGo-Map,DennyLoko/RocketMap,tomballgithub/RocketMap,DennyLoko/RocketMap,catnet23/PocketMap,tanishbaansal/pokemongomapi,alokki/PokemonGo-Map,quagliero/PokemonGo-Map,neskk/PokemonGo-Map,MaTriXy/PokemonGo-Map,FranManre/PokeMap,tsuncp/PokemonGo-Map,tanishbaansal/pokemongomapi,umeku/PokemonGo-Map,Zoruk/PokemonGo-Map,an0ninja/PokemonGo-Map,osalivan/po-go-go,pkgta1/shuffle,houkop/PokemonGo-Map,commanderjsoc/PokemonGo-Map,doeiqts/PokemonGo-Map,AEtHeLsYn/RocketMap,pdong/PokemonGo-Map,xrobau/PoGoMap,CalcMan/PokemonGo-Map,oxyrox/PokemonGo-Map,annatran/PokemonGo-Map,CalcMan/PokemonGo-Map,pretsell/PokemonGo-Map,AEtHeLsYn/RocketMap,pgandev/RocketMap,djfye/PokemonGo-Map,woest85/PokemonGo-Map-1,RocketMap/RocketMap,LTHeaven/PokemonGo-Map,an0ninja/PokemonGo-Map,catnet23/PokemonGo-Map,slgphantom/RocketMap,neskk/RocketMap,rpotpogo/PokemonGo-Map,neskk/PokemonGo-Map,vulampharmd/test,NenadJAustralia/PokemonGo-Map,RocketMap/RocketMap,hasosoft/PokemonGo-Map,cristianougly/pokemongosaoleo,invisiblek/PokemonGo-Map,commanderjsoc/PokemonGo-Map,webycel/PokemonGo-Map,pkgta1/shuffle,alokki/PokemonGo-Map,hasosoft/PokemonGo-Map,ultrafunkamsterdam/PokemonGo-Map,Darkknightz/PokemonGo-Map,zhengwang3351898/Pokemongo-Map,Xcelled/PokemonGo-Map,edmundlam/PokemonGo-Map,umeku/PokemonGo-Map,potamax/maptest,neskk/PokemonGo-Map,tomballgithub/RocketMap,hubertokf/RocketMap,marauder37/PokemonGo-Map,catnet23/PokemonGo-Map,dev042/RocketMap,vulampharmd/test,berlotto/PokemonGo-Map,NickG1025/PokemonGo-MapPokeEdge,BallCity/PokemonGo-Map,averylarry/RocketMap,osalivan/po-go,PiaFraus/PokemonGo-Map,seebadoris/pkmapmons,DarkSwatcat/PokemonGo-Map,DennyLoko/RocketMap,mikehow1984/PokemonGo-Map,Xcelled/PokemonGo-Map,quagliero/PokemonGo-Map,cocktail13/pogom.py,quagliero/PokemonGo-Map,POPSuL/PokemonGo-Map,delold/PokemonGo-Map,prajwalkman/PokemonGo-Map,vulampharmd/test,catnet23/PokemonGo-Map,DarkSwatcat/PokemonGo-Map,hasosoft/PokemonGo-Map,Darkknightz/PokemonGo-Map,SilphServices/RocketMap,seebadoris/pkmapmons,edgarborja/PokemonGo-Map,Obihoernchen/RocketMap,k0mat/PokemonGo-Map,boby361/RocketMap,slgphantom/RocketMap,SilphServices/RocketMap,buddyfavors/PokemonGo-Map,djfye/RocketMap,sclo012/PokemonGo-Map,KoertJanssens/MasterBall.be,boby361/RocketMap,ultrafunkamsterdam/PokemonGo-Map,AEtHeLsYn/RocketMap,jjiko/PokemonGo-Map,pir2/PokemonGo-Map,cocktail13/pogom.py,luisintosh/poke,umeku/PokemonGo-Map,JohnLore/PokemonGo-Map,Alderon86/RocketMap,k0mat/PokemonGo-Map,darragjm/PokemonGo-Map,oxyrox/PokemonGo-Map,doeiqts/PokemonGo-Map,pkgta1/shuffle,loquendomia/KokoxGO,rpotpogo/PokemonGo-Map,berlotto/PokemonGo-Map,POPSuL/PokemonGo-Map,Studio-XP/PokemonGo-Map,neskk/RocketMap,tsuncp/PokemonGo-Map,Zoruk/PokemonGo-Map,zhengwang3351898/Pokemongo-Map,MaTriXy/PokemonGo-Map,medghaim/PokemonGo-Map,marauder37/PokemonGo-Map,tsuncp/PokemonGo-Map,averylarry/RocketMap,houkop/PokemonGo-Map,FranManre/PokeMap,Zoruk/PokemonGo-Map,voxx/RocketMap,DarkSwatcat/PokemonGo-Map,anon0429/PokemonGo-Map,Zoruk/PokemonGo-Map,horatiulefter/pokemon,berlotto/PokemonGo-Map,HowDoesExcelWork/RocketMap,dev042/RocketMap,annatran/PokemonGo-Map,KoertJanssens/MasterBall.be,luisintosh/poke,cocktail13/pogom.py,DennyLoko/RocketMap,BallCity/PokemonGo-Map,mikehow1984/PokemonGo-Map,pdong/PokemonGo-Map,PiaFraus/PokemonGo-Map,djfye/PokemonGo-Map,djfye/PokemonGo-Map,POPSuL/PokemonGo-Map,mpw1337/RocketMap,RocketMap/RocketMap,MaTriXy/PokemonGo-Map,filmkorn/PokemonGo-Map,xrobau/PoGoMap,neskk/RocketMap,pgandev/RocketMap,hubertokf/RocketMap,FranManre/PokeMap,neskk/RocketMap,sclo012/PokemonGo-Map,nijave/PokemonGo-Map,jjiko/PokemonGo-Map,boby361/RocketMap,buddyfavors/PokemonGo-Map,darragjm/PokemonGo-Map,medghaim/PokemonGo-Map,chrux/PokemonGo-Map,Darkknightz/PokemonGo-Map,averylarry/RocketMap,rpotpogo/PokemonGo-Map,Studio-XP/PokemonGo-Map,hasosoft/PokemonGo-Map,webycel/PokemonGo-Map,annatran/PokemonGo-Map,loquendomia/KokoxGO,an0ninja/PokemonGo-Map,JohnLore/PokemonGo-Map,ultrafunkamsterdam/PokemonGo-Map,jjiko/PokemonGo-Map,NickG1025/PokemonGo-MapPokeEdge,HowDoesExcelWork/RocketMap,prajwalkman/PokemonGo-Map,Zyrix/PokemonGo-Map,Alderon86/RocketMap,xrobau/PoGoMap,Zyrix/PokemonGo-Map,dev042/RocketMap,filmkorn/PokemonGo-Map,creatingwake/PokemonGo-Map,AEtHeLsYn/RocketMap,Xcelled/PokemonGo-Map,ultrafunkamsterdam/PokemonGo-Map-V2,LeluStudios/PogoMap,pretsell/PokemonGo-Map,hubertokf/RocketMap,voxx/RocketMap,DeWenS/PokemonGo-Map,woest85/PokemonGo-Map-1,neskk/PokemonGo-Map,LeluStudios/PogoMap,osalivan/po-go,JapuDCret/RocketMap-Do,mikehow1984/PokemonGo-Map,sebastienvercammen/RocketMap,Shibby7986/PokemonGo-Map,seebadoris/pkmapmons,Shibby7986/PokemonGo-Map,potamax/maptest,medghaim/PokemonGo-Map,pretsell/PokemonGo-Map,anon0429/PokemonGo-Map,pir2/PokemonGo-Map,markusz/PokemonGo-Map,luisintosh/poke,xrobau/PoGoMap,ultrafunkamsterdam/PokemonGo-Map,buddyfavors/PokemonGo-Map,catnet23/PokemonGo-Map,woest85/PokemonGo-Map-1,pir2/PokemonGo-Map,cristianougly/pokemongosaoleo,nijave/PokemonGo-Map,djfye/PokemonGo-Map,redswallow/pokemon-go-map,DeWenS/PokemonGo-Map,cristianougly/pokemongosaoleo,cocktail13/pogom.py,loquendomia/KokoxGO,tsuncp/PokemonGo-Map,LTHeaven/PokemonGo-Map,SilphServices/RocketMap,NenadJAustralia/PokemonGo-Map,Shibby7986/PokemonGo-Map,birdstream/RocketMap,HowDoesExcelWork/RocketMap,darragjm/PokemonGo-Map,patlanio/PokemonGo-Map,creatingwake/PokemonGo-Map,ultrafunkamsterdam/PokemonGo-Map-V2,edmundlam/PokemonGo-Map,zhengwang3351898/Pokemongo-Map