Changed the versioning of sci-chemistry/nwchem to use the package patchlevel versus the ebuild revision properly. Compilation without MPI support tested and corrected. Options added to compile with OpenMP, to compile the MRCC module, and to build against system BLAS.

Package-Manager: portage-2.2.11-r1
Merge remote-tracking branch 'github/master'

* github/master:
  Remove python2.6 from astropy affliated ebuilds
  sci-mathematics/giac: Ebuild fix
  sci-mathematics/giac: EAPI bump
  sci-mathematics/giac: Ebuild improvement
  sci-mathematics/giac: Ebuild fix
  dev-python/specutils: Add specutils package
  dev-python/photutils: Add photutils package
  dev-python/imageutils: Add imageutils package
  dev-python/gammapy: Add gammapy package
  dev-python/ccdproc: Add ccdproc package
  dev-python/astropy-helpers: Add astropy-helpers package
  2.0.4 is already in main tree Revert "media-gfx/librecad: version bump 2.0.4"
  media-gfx/librecad: version bump 2.0.4
  Install the .f90 fortran includes.