4.1.0 removes support for L5.8 and L6; removes revisionable dependency

Author: tabacitu

composer.json

@@ -32,16 +32,16 @@
         }
     ],
     "require": {
-        "laravel/framework": "^7.0|^6.0|5.8.*",
+        "laravel/framework": "^7.0",
         "prologue/alerts": "^0.4.1",
         "creativeorange/gravatar": "~1.0",
         "nesbot/carbon": "^2.14.0",
         "ocramius/package-versions": "^1.4",
         "laravel/helpers": "^1.1",
         "doctrine/dbal": "^2.5",
-        "venturecraft/revisionable": "1.*",
         "intervention/image": "^2.3",
-        "guzzlehttp/guzzle": "^6.3"
+        "guzzlehttp/guzzle": "^6.3",
+        "laravel/ui": "2.*"
     },
     "require-dev": {
         "phpunit/phpunit": "~7.0",