allow to customize fallback locale

.env.example

@@ -1,5 +1,6 @@
 APP_DEBUG=false
 APP_ENV=production
+APP_FALLBACK_LOCALE=
 
 ASSET_ENV=production
 ASSET_URL=

config/app.php

@@ -116,7 +116,7 @@ return [
     |
     */
 
-    'fallback_locale' => 'en',
+    'fallback_locale' => env('APP_FALLBACK_LOCALE', 'en'),
 
     /*
     |--------------------------------------------------------------------------

resources/misc/changelogs/en/5.0.0.md

@@ -28,6 +28,7 @@
 - Added support of installing plugin by submitting remote URL.
 - Added support of clicking on the uploader's nickname in skin library to view other uploads of that user.
 - Added `php artisan update` command for updating by CLI.
+- Allowed to customize fallback locale.
 
 ## Changed
 

resources/misc/changelogs/zh_CN/5.0.0.md

@@ -28,6 +28,7 @@
 - 可通过提交 URL 来安装插件
 - 皮肤库中可通过点击上传者昵称来查看该用户的其它上传
 - 增加 `php artisan update` 命令以便通过命令行进行升级数据库
+- 支持自定义 fallback locale
 
 ## 调整