Merge pull request #405 from bamarni/patch-2

the id is hardcoded in preventDuplicates section, it should use tokenValue

Author: loopj

src/jquery.tokeninput.js

@@ -615,7 +615,7 @@ $.TokenList = function (input, url_or_data, settings) {
             token_list.children().each(function () {
                 var existing_token = $(this);
                 var existing_data = $.data(existing_token.get(0), "tokeninput");
-                if(existing_data && existing_data.id === item.id) {
+                if(existing_data && existing_data[settings.tokenValue] === item[settings.tokenValue]) {
                     found_existing_token = existing_token;
                     return false;
                 }