This replaces a custom token-based substitution format with calls to
Spec.format in modules.py

This also resolves a couple issues:

- LmodModules set configuration globally instead of in its initializer
  which meant test-specific configuration was not applied
- Added support for setting hash_length=0 for LmodModules. This only
  affects the module filename and not the directory names for the
  hierarchy tokens in the path. This includes an additional unit test.

* 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

The breaks `spack create`.

Removed documentation on false paths as per #2083

* document recommended usage of system blas/lapack

* update doc

* minor

* reword

Add the latest release of libSplash, version 1.5.0.

* spack install : added --log-format option (incorporates test-install command)

fixes #1907

* qa : removed extra whitespace

* 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.

* veclibfort: add new package

* veclibfort: add a small test

Add a package for ant, a java build tool.

Add a package that installed the pre-built maven distribution.

I've given up, for now, on building maven from source.  That processed
stumbled on two points before I gave up:

1. It downloaded several hundred .{pop,jar} files and I despaired of
   figuring out some way of mirroring and checksumming them; and

2. It exploded complaining about too many unacceptable license files,
   which seems odd in its own source tree.

Perhaps someone with more Java fu that I admit to can figure it out.
In the meantime, this is useful.

* add filter_system_paths()

* filter system paths in set_build_environment_variables()

* two function: lib/inc + bin

* reverse order in bin

* fix order

* minor

* improvements of the code

* more cleanup

* alternative solution for filter_bins

* fiddle base alalazo's approach

* minor

* minor

Funded-by: IDEAS
Project: IDEAS/xSDK
Time: 1 hour

* libsodium: add latest versions, fix old versions

older versions of libsodium were added to an "old" subdirectory

* zeromq: add 4.1.4

prerequiste for the latest develop version of flux

Pkg-config depends on glib which depends on pkg-config. As a result,
pkg-config used to build glib internally. However, this fails on Mac.
Building pkg-config with an internal glib is now a variant, turned on
by default, and required to build glib.

* Add patch allowing GCC 6 to compile GCC 5

* Expand patch version range

* Tells boost explictly about libraries and headers

Ideally, bjam would determine the libraries and headers from the
executable. But it doesn't. This rigs a best guess for python libraries
and headers.

* Move glob import to top of file

* variable name change: alllibs --> all_libs

* Use dso suffix rather than hard-coded string

* Use only MAJOR.MINOR when setting up python in bjam

do_install : allow for an arbitrary number of phases

* Fixed a bug causing config-specified compiler flags to be ignored.
Updated the compiler config so all flags are in a separate section.

* Updated the documentation for the `compilers.yaml` file spec.

* Implemented basic testing for the 'flags' section of compiler config.

* Fixed a few minor problems with the manual compiler config documentation.

Funded-by: IDEAS
Project: IDEAS/xSDK
Time: .4 hours

* Adds new versions to eigen

* Reorder versions from oldest to newest