Merge branch 'topic/prestrip-down'

Merge branch 'topic/prestrip-down'

* topic/prestrip-down:
  Remove more old make and build relations
  Drop all Makefiles
  Simplemost cutdown to get rid of HTML manuals
  Drop tmac/doc-old.tmac
  Drop tmac/psatk.tmac
  Drop tmac/man.ultrix
  Drop src/utils/xtotroff
  Drop src/roff/grog (maybe forever)
  Drop src/devices/xditview and support
  Drop src/devices/grolj4 and support
  Drop src/devices/grolbp and support
  Drop font/devps/old
  Drop doc/gnu.xpm, use new doc/logo.eps
  Drop contrib/pic2graph (for now)
  Drop contrib/mom: i'll add an import script later (new one is GPL3)
  Drop contrib/mm: i'll add an import script later (new one is GPL3)
  Drop contrib/groffer, that will be a builtin later on
  Drop contrib/graph2graph (for now)
  Drop contrib/gdiffmk for now
  Drop contrib/eqn2graph (for now)
  Drop contrib/chem for now (maybe readd BWK awk chem?)
  Remove all .cvsignore files
  Drop various text files
  Drop ChangeLog*
  Drop arch/
  Drop m4/ and config*