Merge pull request #2503 from Badiboy/master

Bump version

Merge pull request #2473 from Badiboy/master

Fix states functions with new parameters

Merge pull request #2441 from Badiboy/master

Bump version

Merge pull request #2428 from Badiboy/master

Bump version

Merge pull request #2416 from Badiboy/master

Version bump and python upgrade

Merge pull request #2395 from coder2020official/botapi-710

bot API 7.10

Merge pull request #2354 from coder2020official/middlewares

Use deepcopy instead of a shallow copy for middlewares, #2349

Merge pull request #2339 from Badiboy/master

Suppress warnings and fix forward_origin

Merge pull request #2314 from Badiboy/master

Bump version to 4.20.0

Merge pull request #2290 from Badiboy/master

Fix MessageEntity.user if None