v1.2.0

• Improved stream compat.
• Reset connection after requests with body where the method does not expect a payload.
• Validate user provided content-length and transfer-encoding headers.
• Error if content-length header and body length does not match.
• Avoid chunked transfer if request body stream is ended in same tick.
• Added InformationalError for 'disconnect' event for when a disconnect was expected.
• Refactoring.