Line unofficial version python 3

Fix longpoll
Fix Login with QR & Authtoken

Carpedm / @carpedm20
Fadhiil Rachman / @fadhiilrachman

All Hello World Members :
Zero Cool / @crash-override404
Fauzan Ardhana / @fauzanardh
Moe Poi ~ / @moepoi
Muhammad Fahri / @FAHRIZTX
Dosugamea / @Dosugamea
Dzin / @dzingans
Alin / @muhmursalind
And others.