This is a bugfix and performance improvment release.
Fixes:
- Explicitly catch asyncio.CancelledError #498
- Do not used start_with in reduce #488
- Fix race condition in zip operator #505
- Fix GEventScheduler deadlock #519
Performance:
- Drop reference to cached items asap in to_xxx #509
Other:
- Fixed several errors in documentation
- Fixed mypy support in sdist #515