* Recently, the "hsaudiotag3k" on pypi has changed name slightly
* The actual version is now "1.1.3.post1"
* This avoids errors when invoking `pip -r requirements.txt`
- Merge windows requirements into requirements.txt and requirements-extra.txt
- Update tox.ini to always use build.py
- Update build.py to have module only option
- Update tox.ini to text python 3.9
- Update .travis.yml to test 3.8 and 3.9 on newer Ubuntu LTS
-Update .travis.yml to work with changes to windows tox
(also update windows to 3.8)
I have a fix to make in it and it's really silly to pretend that this
lib is of any use to anybody outside HS apps. Bringing it back here will
make things more simple.