Bot API 3.4

[noplanman]

https://core.telegram.org/bots/api-changelog#october-11-2017

• Live Locations: Add new field live_period to the sendLocation method and the editMessageLiveLocation and stopMessageLiveLocation methods.
• Add new setChatStickerSet and deleteChatStickerSet methods to manage group sticker sets.
• The getChat request now returns the group's sticker set for supergroups if available.
• Add new field caption_entities in Message entity, to receive entities from media captions.