Added
* Add `ub.TempDir`
* Add `ub.import_module_from_path`
* Add `ub.import_module_from_name`
Modified
* can now choose `ub.cmd` tee backend (select or thread) on POSIX.
* `ProgIter` now supports a more `tqdm`-like API
* Add standard deviation to `timerit`
* Minor enhancements to `ub.Cacher`
Fixed
* fixed unused argument `chunksize` in `util_download`
* `ub.cmd` tests now work on windows
* terminal colors now work on windows
Deprecated
* Remove most of the `static_analysis` module. Use code in xdoctest for now. Note: some of this functionality may return as general utilities in the future, but the existing constructs were only needed for doctests, which are now done via xdoctest.