Merge branch 'contrib_arpack_ng' of https://github.com/tloizou/easybuild-easyconfigs into arpack-ng

* 'contrib_arpack_ng' of https://github.com/tloizou/easybuild-easyconfigs: (46 commits)
  Change in config file
  Making changes in arpack-ng
  Adding arpack-ng
  Adding arpack-ng
  fix typo
  update release notes for EasyBuild v1.8.2
  port thread pool patch to PSI 4.0b4, and use it to fix 'hanging' tests
  add gzip easyconfig for gmpolf toolchain, clean up comments in gmpolf toolchain
  fix final remarks
  align gmpich2 and gmpolf toolchain versions, fix dependency specifications in toolchain easyconfigs
  rebase gmpich easyconfig for FFTW 3.3.3 on gmvapich easyconfig (rather than one for a Clang-based toolchain)
  bump version to 1.9.0.0dev
  add PR #462 to release notes, fix typo
  fix easyconfig file names w.r.t version suffixes
  bump version to v1.8.1.0, update release notes
  correct version to v1.8.1.0
  PSI: avoid duplicate patch
  remove respecifying default max_fail_ratio of 0.5 in NWChem easyconfig
  really fix typo in patch file
  fix typo in patch file
  ...

Conflicts:
	easybuild/easyconfigs/a/arpack-ng/arpack-ng-3.1.3-configure-mpi.patch