Fix mangled language names in tornado.locale for Chinese, Japanese, Korean.

For Chinese, also follow Google's example and reduce number of
variants to two: Simplified (zh_CN) and Traditional (zh_TW) (since I
couldn't find an appropriate copy-paste source for localized versions
of "Chinese (Hong Kong)" and "Chinese (Taiwan)")

Closes #168.

tornado/locale.py

@@ -427,8 +427,8 @@ LOCALE_NAMES = {
     "id_ID": {"name_en": u"Indonesian", "name": u"Bahasa Indonesia"},
     "is_IS": {"name_en": u"Icelandic", "name": u"\xcdslenska"},
     "it_IT": {"name_en": u"Italian", "name": u"Italiano"},
-    "ja_JP": {"name_en": u"Japanese", "name": u"\xe6\xe6\xe8"},
-    "ko_KR": {"name_en": u"Korean", "name": u"\xed\xea\xec"},
+    "ja_JP": {"name_en": u"Japanese", "name": u"\u65e5\u672c\u8a9e"},
+    "ko_KR": {"name_en": u"Korean", "name": u"\ud55c\uad6d\uc5b4"},
     "lt_LT": {"name_en": u"Lithuanian", "name": u"Lietuvi\u0173"},
     "lv_LV": {"name_en": u"Latvian", "name": u"Latvie\u0161u"},
     "mk_MK": {"name_en": u"Macedonian", "name": u"\u041c\u0430\u043a\u0435\u0434\u043e\u043d\u0441\u043a\u0438"},
@@ -456,7 +456,6 @@ LOCALE_NAMES = {
     "tr_TR": {"name_en": u"Turkish", "name": u"T\xfcrk\xe7e"},
     "uk_UA": {"name_en": u"Ukraini ", "name": u"\u0423\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0430"},
     "vi_VN": {"name_en": u"Vietnamese", "name": u"Ti\u1ebfng Vi\u1ec7t"},
-    "zh_CN": {"name_en": u"Chinese (Simplified)", "name": u"\xe4\xe6(\xe7\xe4)"},
-    "zh_HK": {"name_en": u"Chinese (Hong Kong)", "name": u"\xe4\xe6(\xe9\xe6)"},
-    "zh_TW": {"name_en": u"Chinese (Taiwan)", "name": u"\xe4\xe6(\xe5\xe7)"},
+    "zh_CN": {"name_en": u"Chinese (Simplified)", "name": u"\u4e2d\u6587(\u7b80\u4f53)"},
+    "zh_TW": {"name_en": u"Chinese (Traditional)", "name": u"\u4e2d\u6587(\u7e41\u9ad4)"},
 }