- 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
* amg2013: fix homepage and url
* kripke: fix homepage and url
* lcals: fix homepage and url
* lulesh: fix homepage and move to git
* urls on single line
* Updated Changes
* Updated AMG with required MPI
* Updated AMG with Version ' changes'
* Fixed Issues with flag's and variant checks
* Updated with MPI Alone and Changes - NO Serial Variant
* Updated with MPI Alone and Changes - NO Serial Variant
* Fixed Flake 8 line length error
* Updated Spack Issues