Tqdm

- CLI custom delimiter support
- More robust CLI argument parsing
- either one or two `-` preceding kwargs (eg `-ascii` or `--ascii`)
- no positional args (so no need to quote multi-word `-desc` for example)
- `bool` kwargs with implicit value=`True` still supported
- optional `=` sign after kwargs
- tests
- doc updates, badges
- pyversions, doi, licence, github

- Fix warnings due to IPython/Jupyter widget

- add IPython/Jupyter support
- fix `{bar}` length breaking display when using custom `bar_format`
- add a no inversion rate formatting for `bar_format` (i.e., always show `it/s` and never `s/it`)

- print messages within (nested) loops using `tqdm.write(...)`

- remove `docopt` dependency for CLI
- re-added `update(0)` ability to trigger refresh
- minor fixes
- re-added (OSI approved) licence to source
- dev versioning auto-fallback
- slight speed optimisation
- tests
- documentation

- Module execution in CLI pipes!
- `tqdm` executable
- documentation
- tests
- MSYS aded to supported envs
- better VTE support
- dev versioning
- tests