Added a check for string.split as a function

Note_Write_Helper/Note_Write_Helper.xml

@@ -57,6 +57,10 @@ returns
 
   <script>
     <![CDATA[
+if not type(string.split) == "function" then
+   require 'string_split'
+end
+
 function note_wrap(str, limit, indent, indent1)
    indent = indent or ""
    indent1 = indent1 or indent