Fixed scripts

tools/conll2text.py

-#! /usr/bin/python
+#! /usr/bin/python3
 
 import sys
 

tools/conlluAddMissingColumns.py

@@ -29,7 +29,7 @@ if __name__ == "__main__" :
 
   lastWasEmpty = False
 
-  for line in open(sys.argv[1], "r") :
+  for line in open(sys.argv[1], "r", encoding="utf8") :
     lastWasEmpty = False
     if len(line.strip()) < 2 :
       lastWasEmpty = True