Unset SPACK_INCLUDE_DIRS so the compiler wrapper does not prepend any -I flags. The assumption is that cmake will set the correct include flags. (#11129)

see https://github.com/spack/spack/pull/10943#issuecomment-475303870

When providing a track, the cdash reporter will format the stamp
itself, as it has always done, and register the build during the
package installation process.  When providing a stamp, it should
first be formatted as cdash expects, and then cdash will be sure
to report results to same build id which was registered manually
elsewhere.

* Update Spec.prefix to have special case for 'None' in database path; regression test
* Update in database reader rather than spec
* Change assertion to conditional + raise
* Added test for concrete check in Spec.prefix

* fixes py-basemap package
* remove basemap mpl_toolkit __init__.py

The module_parsing test checks whether the module function is available
by looking for the string 'not found'. If the user has set a different
locale, the test can assume that the module function is available when
it actually is not.

* miniamr: add develop version and update release

* change from url to git

* add url back

* Add versions 5.2.0 and 5.1.0
* Avoid adding version 6.0.0: this version has a new API that is
  not compatible with older versions (and dependents may break with
  it)
* Added comment block explaining the problems with version 6.x
* Replace old datumgrid resource (1.7) with new (1.8)
* Add speculative sqlite dependency for when a 6.x version is added

* add version 7.0.1
* replace md5 with sha256 for various versions.
* v7.0.1 fixes some environment hacking to properly find MPI and
  system architecture

Directory layouts using ${NAMESPACE} were broken. This addresses that
and adds a test to prevent regression.

This adds a stub script for mpirun and other standard executables
when installing OpenMPI with slurm. The purpose is to make the
removal less of a surprise to administrators/users: it explains why
they were removed and how to restore them.

Ensure that netcdf-cxx uses the Spack-installed hdf5 and netcdf4
rather than system-installed versions.

Also constrain the py-arrow version to depend on the same version
of arrow (e.g. 0.12.1 of py-arrow depends on 0.12.1 of arrow)