Merge branch 'develop' into style-new

* develop: (91 commits)
  consistently use %(perlver)s
  disable optarch toolchain option to dance around internal compiler error
  additional style fixes in xtrans easyconfigs
  additional style fixes in TCC, Vampir, VampirServer and ViennaRNA easyconfigs
  Don't use %(perl)s and add Perl as a dep.
  additional style fixes in psmpi easyconfigs
  additional style fixes in Python easyconfigs
  additional style fixes in ParMETIS easyconfigs
  add comments in patch files
  {vis}[intel/2016a] PyFFmpeg 2.1beta + FFmpeg 0.10.16
  additional style fixes in OpenFOAM easyconfigs
  additional style fixes in Oger easyconfigs
  additional style fixes in nettle easyconfigs
  additional style fixes in ncurses easyconfigs
  additional style fixes in NCO easyconfigs
  additional style fixes in MultiNest easyconfigs
  additional style fixes in MCR easyconfigs
  Use of source name template
  Messing w/ the %s vs %%(perl)s style interpolation.
  Use Perl suffix and factor out 'kmer'
  ...