WordNet 3.1

Closes Homebrew/homebrew#19473.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/wordnet.rb

@@ -1,13 +1,25 @@
 require 'formula'
 
+class WordnetDictionaryUpdate < Formula
+  homepage 'http://wordnet.princeton.edu/'
+  url 'http://wordnetcode.princeton.edu/wn3.1.dict.tar.gz'
+  sha1 '67dee39f6e83c9a05d98c5790722b807812cda87'
+  version '3.1'
+end
+
 class Wordnet < Formula
   homepage 'http://wordnet.princeton.edu/'
   url 'http://wordnetcode.princeton.edu/3.0/WordNet-3.0.tar.bz2'
   sha1 'aeb7887cb4935756cf77deb1ea86973dff0e32fb'
+  # Version 3.1 is version 3.0 with the 3.1 dictionary.
+  version '3.1'
 
   depends_on :x11
 
   def install
+    WordnetDictionaryUpdate.new.brew do
+      (prefix+"dict").install Dir['*']
+    end
     system "./configure", "--disable-debug", "--disable-dependency-tracking",
                           "--prefix=#{prefix}",
                           "--mandir=#{man}"