- remove the old LGPL license headers from all files in Spack
- add SPDX headers to all files
- core and most packages are (Apache-2.0 OR MIT)
- a very small number of remaining packages are LGPL-2.1-only
* Add tests to mercurial package
* Add support for --insecure with mercurial fetching
* Install man pages and tab-completion scripts
* Add tests and latest version for all deps
* Flake8 fix
* Use certifi module to find CA certificate
* Flake8 fix
* Unset PYTHONPATH when running hg
* svn_fetch should use to svn-test, not hg-test
* Drop Python 3 support in Mercurial
Python 3 support is a work in progress and isn't currently
recommended:
https://www.mercurial-scm.org/wiki/SupportedPythonVersions
* Test both secure and insecure hg fetching
* Test both secure and insecure git and svn fetching
