Adapting Chinese code langs to ISO Standard

lang-zh_CN.js

@@ -1,6 +1,6 @@
 /*
 
-    lang-zh.js
+    lang-zh_CN.js
 
     Simplified Chinese translation for SNAP!
 
@@ -166,7 +166,7 @@
 
 /*global SnapTranslator*/
 
-SnapTranslator.dict.zh = {
+SnapTranslator.dict.zh_CN = {
 
 /*
     Special characters: (see <http://0xcc.net/jsescape/>)

lang-zh_TW.js

@@ -1,6 +1,6 @@
 /*
 
-	lang-tw.js
+	lang-zh_TW.js
 
 	Traditional Chinese translation for SNAP!
 	SNAP 繁體中文翻譯版
@@ -167,7 +167,7 @@
 
 /*global SnapTranslator*/
 
-SnapTranslator.dict.tw = {
+SnapTranslator.dict.zh_TW = {
 
 /*
     Special characters: (see <http://0xcc.net/jsescape/>)

locale.js

@@ -229,7 +229,7 @@ SnapTranslator.dict.cs = {
         '2015-11-16'
 };
 
-SnapTranslator.dict.zh = {
+SnapTranslator.dict.zh_CN = {
     'language_name':
         '简体中文',
     'language_translator':
@@ -317,7 +317,7 @@ SnapTranslator.dict.pl = {
         '2016-11-14'
 };
 
-SnapTranslator.dict.tw = {
+SnapTranslator.dict.zh_TW = {
     'language_name':
         '繁體中文',
     'language_translator':