Tweak www/firefox version 23.0.1,1
Prune 28 obsolete ports

FreeBSD Ports maintainers have already deleted the following:
  audio/akode
  audio/akode-plugins-ffmpeg
  audio/akode-plugins-jack
  audio/akode-plugins-mpc
  audio/akode-plugins-mpeg
  audio/akode-plugins-oss
  audio/akode-plugins-pulseaudio
  audio/akode-plugins-resampler
  audio/akode-plugins-xiph
  devel/getxml
  devel/hypersrc
  dns/dnsdoctor
  games/nethack33-gnome
  math/vtk
  math/vtk-data
  math/vtk-examples
  math/vtk-headers
  math/vtk-python
  math/vtk-tcl
  science/mayavi
  security/stem
  sysutils/gupsc
  textproc/cole
  textproc/xls2xml
  x11-themes/gnome-look
  x11-themes/gtk-engines
  x11-themes/gtk-engines-collection
  x11-themes/thinice