devel/libusb: LOCK, removed from FreeBSD because its in base
Prune 37 obsolete ports

FreeBSD Ports maintainers have already deleted the following:
  converters/ruby-bsdconv
  devel/libgsf-gnome
  devel/p5-Oogly
  devel/py-extended_threading
  devel/py-libgsf
  devel/ruby-term-ansicolor
  dns/bind97
  dns/bind97-sdb
  dns/dnsperf
  editors/nxml-emacs21
  editors/tamago-emacs21
  graphics/jpeg2ps-a4
  graphics/jpeg2ps-letter
  japanese/navi2ch-emacs21
  japanese/navi2ch-xemacs21-mule
  lang/tcl83
  mail/listmanager
  net-mgmt/nettop
  print/a2ps-a4
  print/a2ps-letter
  print/a2ps-letterdj
  print/c2ps-a4
  print/c2ps-letter
  print/html2ps-a4
  print/html2ps-letter
  print/lprps-a4
  print/lprps-letter
  print/psutils-a4
  print/psutils-letter
  security/gnupg-idea
  textproc/ruby-libxml
  textproc/ruby-sablot
  www/ilias3
  www/p5-Dancer-Plugin-DataFu
  www/squid31
  www/typo346
  x11-toolkits/tk83