Tqdm

- fix `notebook` formatting

- fix ANSI escape codes breaking `tqdm.write` (692, 777)
- fix long-lived strongref (1007, https://bugs.python.org/issue39093)
- fix cli `--version` crash on missing `git/refs/heads` (635)
- fix `contrib.tenumerate` ignoring `total` (1017)
- fix potential deep => shallow `kwargs` copy issues
- improve `notebook` display for unknown `total` (1015)
- make `asyncio` inherit from `std` rather than `auto`
- make `auto` multi-inherit from `autonotebook`, `asyncio` on Python3.5+
- misc documentation & examples updates
+ mention `docker-compose` requirements (771)
- misc linting & tidy
- misc minor testing framework updates

- add `tqdm.asyncio` (1004, 772, 91 <- 65)
+ supports async iterables (`async for row in tqdm(iterable)`)
+ supports iterables
+ supports `coroutine.send` (`tqdm(coroutine).send`)
+ add `as_completed` wrapper (`for f in tqdm.as_completed(fs)`)
- reduce `contrib.discord` logging verbosity
- fix potential `pandas()` modifying `**kwargs` bug
- update documentation
+ add missing inline docstrings
+ update contributing notes
+ update readme
+ add to `examples/` folder
* async_coroutines
* coroutine_pipe
+ standardise variable naming
- add tests
+ add benchmark tests against popular alternative libraries
+ test new functionality
+ more thorough `miniters` test (1003)
- misc framework updates
+ tidy changelog helper
+ add helper bots
* comment-bot `/tag`
* post-release-bot
- wiki updater
- website updater
* benchmark regressions
- full/thorough test on schedule & release
- quick test on PR

- add `contrib.discord` (similar to `contrib.telegram`) (976)
- add `contrib.bells` to auto-enable all extras
- add `contrib.utils_worker` for common slow tasks (e.g. web I/O)
+ fix lazy large memory usage & discard unsent messages (unprocessed tasks)
- fix slow notebook imports (955 <- 709)
- fix `gui` `TypeError` on unknown `len()` (971)
- misc documentation/error message updates
+ more succinct ImportError on missing `ipywidgets` (872)
+ fix broken/deprecated link (981)
+ add inline usage for `contrib.discord` and `contrib.telegram`
- misc framework updates
+ add official `py3.8` support (986)
+ fix `snap` builds



- fix missing `sys.setcheckinterval` in py3.9 (978)
- fix `keras.TqdmCallback` compatibility with `tensorflow==2.2.0` (979)
- update documentation
+ correct `contrib.concurrent` correct `max_workers` (977)
+ drop prominent mention of `xrange` (965)
- minor linting

- add `contrib.telegram` 949 <- 948
- add `bash` tab completion and `--comppath` 946, 947 <- 858
- fix exception safety in `external_write_mode` 940
- add `requests` examples (242)
- update documentation