v0.50.0

Added:

1. Support Bot API v4.8: (by @danielperez9430)
   • Add methods: sendDice()
2. Support Bot API v4.7: (by @danielperez9430)
   • Add methods: getMyCommands(),setMyCommands()
3. Support Bot API v4.5: (by @danielperez9430)
   • Add methods: setChatAdministratorCustomTitle()
4. Support Bot API v4.4: (by @danielperez9430)
   • Add methods: setChatPermissions()
5. Support for poll_answer (by @jiejiss)
6. Add request options in file stream (by @zhangpanyi )

Changed: (by @danielperez9430)

• New message type: dice
• Fix Bugs in tests
• Fix regex compare (by @ledamint)
• Fix listening for error events when downloading files (by @Kraigo)

New Test: (by @danielperez9430)

• sendDice
• getMyCommands
• setMyCommands
• setChatAdministratorCustomTitle
• setChatPermissions