This adds the built recipe for
[Jansson](http://www.digip.org/jansson/),
*a C library for encoding, decoding and manipulating JSON data.*

GitHub Repo: https://github.com/akheron/jansson

Downstream Usage:
  In [ISAAC](https://github.com/ComputationalRadiationPhysics/isaac)
which is an *in situ visualization library* based on
  [alpaka](https://github.com/ComputationalRadiationPhysics/alpaka)
and/or CUDA which is used in
  [PIConGPU](https://github.com/ComputationalRadiationPhysics/picongpu).

This adds the built recipe for
[libwebsockets](https://libwebsockets.org/lws-api-doc-master/html/index.html),
a *C library for lightweight websocket clients and servers*.

GitHub Repo: https://github.com/warmcat/libwebsockets

Downstream Usage:
  In [ISAAC](https://github.com/ComputationalRadiationPhysics/isaac)
which is an *in situ visualization library* based on
  [alpaka](https://github.com/ComputationalRadiationPhysics/alpaka)
and/or CUDA which is used in
  [PIConGPU](https://github.com/ComputationalRadiationPhysics/picongpu).

Adding some lines to prevent from using any CUDA stuff, if NVIDIA CUDA Developement Kit was installed before.

* Added version 1.5.3 for py-matplotlib

* Updated url to pypi.io so all versions are properly downloaded.

Added 'lib64' directory as a possible option where tclConfig.sh file can be found.

* fix tau installation issue : setup_environment() is
called before install phase when 'Makefile.*' doesn't
exist (causing list index out of range error).

* Added detailed comment suggested by @alalazo

* Add PFFT parallel FFT package

* pfft: fix non-double precision

* mpich: updated package to build_systems

* qa : flake8 issues

* Add STAR-CCM+ package

* Cleanup commented out code

* November 1 seems to have brought a new texlive release, updating the
digest to match.

Also switching the url from their automagic mirror to an explicit
site to avoid inconsistencies during their updates.

It seems like only yesterday (#2073) that I updated this....

* Add comment to url warning about mirror updates

Add a comment to the download info warning to use a
specific site rather than the mirror, to avoid wobbles
during their asynchronous updates.

* Fix typo ('to no' -> 'do not')

* libSplash: Add 1.6.0 Release

Add the latest release of libSplash, version 1.6.0.

* Fix flake8 checks (another loop inversion issue)

* updates to matio package

- update to a AutoTools package
- add variants for hdf5 and zlib
- add latest version

* fix flake8 error

* fix and simplify opencoarrays package using new CMakePackge methods

* add new version

* fix to trilinos package

* fix to dealii package

* fix to everytrace package

* fix to everytrace-example package

* changes suggested by @davydden

* In order to use TAU module, we have to set TAU_MAKEFILE env variable.

* updated with suggestions from @citibeth

Without GRIB2 and HDF-EOS support yet.

* works to build newest version of nmap with gcc@5.3.0

* formatting

* clean up

On MacOS, brew installs /usr/local/bin/python but the Python prefix is not /usr/local/bin
Use the python command sys.exec to get the correct directory, instead of the ad hoc self.prefix
previously used

This was a bear to debug; been driving me nuts since I started using spack.
Since spack passes PYTHONHOME down to package builds in the environment
it was passing PYTHONHOME of /usr/local/bin to the PETSc build that uses Python so
the PETSc Python ./configure errored immediately with

ImportError: No module named site

since python could find no python modules. Todd Gamblin pointed out that my first try to fix
this was wrong since it assumed the spack python was the same python used to run spack. Elizabeth Fischer
suggested how to get it to work also with python3

Funded-by: IDEAS
Project: IDEAS/xSDK
Time:  7 hours
Thanks-to: Todd Gamblin, Elizabeth Fischer

* Made some refactoring improvements to the 'visit' and 'vtk' packages.

* Added a small fix for the 'vtk' package when building with 'qt+webkit'.

Funded-by: IDEAS
Project: IDEAS/xSDK
Time:  2 hours

Add the latest release of libSplash, version 1.5.0.

* openmpi: require fortran for now

* mpich: requre fortran for now

* mvapich2: require fortran for now

* openmpi: flake8 fixes

* Update the krell institute products to use the latest features of spack for building on cluster platforms.

* Address travis error messages and resubmit the pull request.

* Update the contents of openspeedshop package.py so it passes the flake8 tests.

* Fix flake8 error-whitespack issue in mrnet package.py file.

* Add updates based on spack reviewer feedback.

* More fixes based on comments from reviewers.  Switch using extend to using append, remove additional setting of PATH and LD_LIBRARY_PATH that should not be required due to RPATH.

* More review related changes.  Update MPIOption.append lines and take out xercesc references.

* Create a base options function for common openspeedshop base cmake options to reduce redundencies.

* Add libxml2+python depends on to get around issues with the libxml2 package file.