* py-pynio: new package

* Major re-working to add some of the optional dependencies, and make it conform to the approach described in the pynio setup.py comments. Much of it turned out to be too complicated, and I have added some notes in comments to explain this to future adventurers.

* Added variants for the hdf5 and gdal dependencies, which do seem to be genuinely optional. Also added absolute dependencies for jpeg and zlib, which setup.py says it wants, but were being found as the os-installed versions.

* Added descriptions for the new variants, and moved them to above the dependencies

Enable explicitly building glib with or without libiconv.

Heads up: if you build with ~iconv but there is something else in the
spec that includes libiconv then glib will *still* automagically
discover it and the build will fail.

* Remove /nfs/tmp2 from default configuration
* /nfs/tmp2 is going away from LC... and doesn’t exist for the rest of the world.
* update documentation to remove /nfs/tmp2 as well

* r3d spackage

* address Adam's review comments

* fix flake8: too many blank lines

* 	modified:   var/spack/repos/builtin/packages/py-h5py/package.py

* Update package.py

* Update package.py

* add the tfel package

* fix the tfel package

* fix the tfel package

* fix the tfel package

* Taking Adam J. Steward' remarks into account

* fixes trailing white spaces

* Update description

* Update dependencies following @adamjstewart adices

* Style fixes

* Style fixes

* Add java optional support

* add the maintainers attribute (following @alalazo advice), disable interface not selected (following @adamjstewart advice)

* flake8 fixes

* Fix Cast3M and python-bindings support. Python detection is made compatible with cmake'FindPythonLibs module (at least how it is used in TFEL)

* Style fixes

* Style fixes

* Fix test on python version

* Follow @adamjstewart advices: code is much cleaner and readable

* Small fix

* Small fix

* Add comment

* Small fix in cmake option

* try again (trying to overcome Travis CI unstable build process)

* move docker test logic to share/spack/qa
* update Dockerfile for archlinux

 - fixed an issue where some undesirable parts of
   the spack source tree were being copied into
   the image context.

 - added a workaround for a tty ioctl warning on
   ubuntu

 - adjusted how the main images are built so that
   `RUN spack ...` works automatically for child
   images that base themselves on them.

* Record build output as an array of lines rather than concatenating to a
  single large string.
* Use string.find to avoid running re.search on every line of output.

When using the CDash reporter, upload a Update.xml file that
indicates the hash of Spack's current git commit.

Pass extra data when submitting to CDash.  If CDash responds with a buildId,
construct and display helpful URL that links to the uploaded report.

Add new command line arguments to `spack install` that allow users
to set the build name, site name, and track in their CDash report.

Make sure cdash_phase is defined before referring to it.

* CGNS: Allow use of git branch versions

Add ability to use git `master` and `develop` branches of the CGNS library.  The `seacas` package sometimes needs to use the `master` or `develop` branch due to some new changes to the parallel I/O implementation in CGNS which has not yet been released.

* CGNS: Reorder to put newest version on top

Based on review comments, place newest version (develop) first in list.

- some commands were missed in the rollout of spack environments

- this makes all commands that need to disambiguate specs restrict the
  disambiguation to installed packages in the active environment, as
  users would expect

* dyninst: patch to build dyninst with older gcc

Add 'v9.3.2-auto.patch'.  This patch changes some 'auto t: type' usage
to the older but equivalent 'type.begin()'.  This allows building
dyninst 9.3.2 with gcc 4.4 which doesn't support the newer syntax.
This patch is harmless with newer gcc.

* Fix typo in patch.  (My bad for sloppy cut-and-paste.)

* Restrict the patch to gcc 4.7 and earlier.  gcc 4.8 supports the newer
usage and thus doesn't need the patch.

Currently, only the Git repsository's URL shows up in the `spack info`
output, which makes it hard to distinguish different versions:
```
Safe versions:
    develop    [git] https://github.com/LLNL/H5Z-ZFP.git
    0.8.0      [git] https://github.com/LLNL/H5Z-ZFP.git
    0.7.0      [git] https://github.com/LLNL/H5Z-ZFP.git
```

This change adds additional information as shown when cloning a Git
repository:
```
Safe versions:
    develop    [git] https://github.com/LLNL/H5Z-ZFP.git on branch master
    0.8.0      [git] https://github.com/LLNL/H5Z-ZFP.git at commit af165c4
    0.7.0      [git] https://github.com/LLNL/H5Z-ZFP.git at commit 58ac811
```

* Updated Dakota to 6.9

* Change comment wording

* Add additional info to MesonPackage docs

* No Pygments lexer for Meson code, default to none