Connection, Stream, Flow: cosmetic changes to the API documentation.
Utils: inlining utility function into corresponding files (that means some code duplication in tests)
Stream: put END_STREAM flag only on HEADERS or DATA frames.
Stream tests: turning off flow control for streams.
Stream: forwarding error events from 'upstream' to the main object.
Documentation: regenerating the developer docs.
Bumping version number.
HTTP docs: update.
Updating HISTORY and README