Merge pull request #3189 from Laravel-Backpack/add-support-for-laravel-8

Add support for Laravel 8

Author: tabacitu

composer.json

@@ -32,7 +32,7 @@
         }
     ],
     "require": {
-        "laravel/framework": "^7.0|^6.0",
+        "laravel/framework": "^8.0|^7.0|^6.0",
         "prologue/alerts": "^0.4.1",
         "creativeorange/gravatar": "~1.0",
         "ocramius/package-versions": "^1.4",