add cmudict version for reproducibility (#871)

egs/fisher_swbd/s5/local/fisher_prepare_dict.sh

@@ -27,7 +27,7 @@
 dir=data/local/dict
 mkdir -p $dir
 echo "Getting CMU dictionary"
-svn co  https://svn.code.sf.net/p/cmusphinx/code/trunk/cmudict  $dir/cmudict
+svn co -r 13068 https://svn.code.sf.net/p/cmusphinx/code/trunk/cmudict  $dir/cmudict
 
 # silence phones, one per line. 
 for w in sil laughter noise oov; do echo $w; done > $dir/silence_phones.txt

egs/hkust/s5/local/hkust_prepare_dict.sh

@@ -31,7 +31,7 @@ cat $dict_dir/words.txt | grep -v '[a-zA-Z]' > $dict_dir/lexicon-ch/words-ch.txt
 ##### produce pronunciations for english 
 if [ ! -f $dict_dir/cmudict/cmudict.0.7a ]; then
   echo "--- Downloading CMU dictionary ..."
-  svn co https://svn.code.sf.net/p/cmusphinx/code/trunk/cmudict \
+  svn co -r 13068 https://svn.code.sf.net/p/cmusphinx/code/trunk/cmudict \
     $dict_dir/cmudict || exit 1;
 fi