support brazilian portugese

ui/constants/languages.js

@@ -129,6 +129,7 @@ const LANGUAGES = {
   pl: ['Polish', 'Polski'],
   ps: ['Pashto', 'پښتو'],
   pt: ['Portuguese', 'Português'],
+  'pt-BR': ['Portuguese (Brazil)', 'Português (Brasil)'],
   qu: ['Quechua', 'Runa Simi'],
   rm: ['Raeto Romance', 'Rumantsch'],
   rn: ['Kirundi', 'Kirundi'],

ui/constants/supported_browser_languages.js

@@ -22,6 +22,7 @@ const SUPPORTED_BROWSER_LANGUAGES = {
   pa: 'pa',
   pl: 'pl',
   pt: 'pt',
+  'pt-BR': 'pt-BR',
   ro: 'ro',
   ru: 'ru',
   sr: 'sr',

ui/constants/supported_languages.js

@@ -22,6 +22,7 @@ const SUPPORTED_LANGUAGES = {
   pa: LANGUAGES.pa[1],
   pl: LANGUAGES.pl[1],
   pt: LANGUAGES.pt[1],
+  'pt-BR': LANGUAGES['pt-BR'][1],
   ro: LANGUAGES.ro[1],
   ru: LANGUAGES.ru[1],
   sr: LANGUAGES.sr[1],

ui/constants/supported_sub_languages.js

@@ -2,7 +2,4 @@
 
 export const SUB_LANG_CODE_LEN = 5;
 
-export const SUPPORTED_SUB_LANGUAGE_CODES = [
-  'zh-CN',
-  'zh-TW',
-];
+export const SUPPORTED_SUB_LANGUAGE_CODES = ['zh-CN', 'zh-TW', 'pt-BR'];

ui/redux/selectors/settings.js

@@ -70,7 +70,7 @@ export const selectHomepageData = createSelector(
   selectHomepageCode,
   (homepageCode) => {
     // homepages = { 'en': homepageFile, ... }
-    return homepages[homepageCode];
+    return homepages[homepageCode] || homepages['en'];
   }
 );