Add support for Laravel 8

Author: agentphoenix

.travis.yml

@@ -5,6 +5,7 @@ php:
   - 5.6
   - 7.1
   - 7.2
+  - 7.3
 
 before_script:
   - curl -s http://getcomposer.org/installer | php

README.markdown

@@ -4,9 +4,9 @@
 [![Latest Unstable Version](https://poser.pugx.org/kalnoy/nestedset/v/unstable.svg)](https://packagist.org/packages/kalnoy/nestedset)
 [![License](https://poser.pugx.org/kalnoy/nestedset/license.svg)](https://packagist.org/packages/kalnoy/nestedset)
 
-This is a Laravel 4-6 package for working with trees in relational databases.
+This is a Laravel 4-8 package for working with trees in relational databases.
 
-*   **Laravel 5.7, 5.8, 6.0, 7.0** is supported since v5
+*   **Laravel 5.7, 5.8, 6.0, 7.0, 8.0** is supported since v5
 *   **Laravel 5.5, 5.6** is supported since v4.3
 *   **Laravel 5.2, 5.3, 5.4** is supported since v4
 *   **Laravel 5.1** is supported in v3

composer.json

@@ -12,10 +12,10 @@
     ],
 
     "require": {
-        "php": ">=7.1.3",
-        "illuminate/support": "~5.7.0|~5.8.0|^6.0|^7.0",
-        "illuminate/database": "~5.7.0|~5.8.0|^6.0|^7.0",
-        "illuminate/events": "~5.7.0|~5.8.0|^6.0|^7.0"
+        "php": ">=7.3.0",
+        "illuminate/support": "~5.7.0|~5.8.0|^6.0|^7.0|^8.0",
+        "illuminate/database": "~5.7.0|~5.8.0|^6.0|^7.0|^8.0",
+        "illuminate/events": "~5.7.0|~5.8.0|^6.0|^7.0|^8.0"
     },
 
     "autoload": {