New Features / Improvements

• Add support for Direct Message typing indicator and read receipts (#1856)
  • Add API.indicate_direct_message_typing and API.mark_direct_message_read
• Fallback to "detail" response value for HTTPException message (b6b8241)
• Handle "error" key of response being a string in HTTPException (2da4452)

Twitter API Deprecations

• Deprecate Stream.sample and note deprecation of compliance messages for Stream.filter (#1876)

Misc

• Use setup.cfg for coverage.py configuration (e24bb2f)
  • Explicitly specify coverage >= 4.4.2 requirement for dev extra (b5bd35e)
• Use setup.cfg for tox configuration (e24bb2f)
  • Update lower bound for dev extra tox requirement to >= 3.21.0 (ba6e6b1)
• Remove tests_require from setup.py (2870031)
• Stop creating universal wheels (9d93ec8)
• Update and improve various documentation and tests