Support for Bot API 2.3

Changelog:
Bot API 2.3 (November 21, 2016)
Games
API refactoring and cleanup
Refactor sample bots + new bots added

v1.2.2

Update README to latest version

v1.2.1

Fix deprecation warnings

v1.1.5: Merge pull request #15 from alari/master

Update to Akka 2.4.6

v1.1.4

May 22, 2016

• Bot API 2.1. Added more tools for group administrator bots. Your bot can now get a list of administrators and members count in a group, check a user's current status (administrator, creator, left the group, kicked from the group), and leave a group.
• Added new methods: getChat, leaveChat, getChatAdministrators, getChatMember, getChatMembersCount.
• Added support for edited messages and new mentions from Telegram v.3.9. New fields: edited_message in Update, edit_date in Message, user in MessageEntity. New value text_mention for the type field in MessageEntity.

v1.1.3

Change token for test bot harness

Scalaj-htttp based

1.0.3-SNAPSHOT

Update README.md