- 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
* Sphinx no longer supports Python 2.6
* Update vendored sphinxcontrib.programoutput from 0.9.0 to 0.10.0
* Documentation cannot be built in parallel
* Let Travis install programoutput for us
* Remove vendored sphinxcontrib-programoutput
Recent updates to the sphinx package prevent the vendored version
from being found in sys.path. We don't vendor sphinx, so it doesn't
make sense to vendor sphinxcontrib-programoutput either.
* Separate build integration tests; simplify test scripts
- Move build tests out of the regular Travis unit tests, add more smoke
test packages to build.
- Run all test scripts with bash -e, which fails on error.
- Factor coverage out into a Travis environment variable, so it's more
obvious from .travis.yml which tests contribute to coverage and which
don't.
- Factor dependency checking and much of the front-matter in tests
scripts into a setup.sh script, which is sourced by all the test
scripts. Extra cruft in each tests script now reduced to 2 lines at
the beginning.
