
- no longer require `spack_version` to be a Version (it isn't used that way anyway) - use a simple tuple `spack_version_info` with major, minor, patch versions - generate `spack_version` from the tuple
- no longer require `spack_version` to be a Version (it isn't used that way anyway) - use a simple tuple `spack_version_info` with major, minor, patch versions - generate `spack_version` from the tuple