Add support for Laravel 5.8

Author: driesvints

composer.json

@@ -15,12 +15,12 @@
     ],
     "require": {
         "php": ">=7.0",
-        "illuminate/bus": "~5.4.0|~5.5.0|~5.6.0|~5.7.0",
-        "illuminate/contracts": "~5.4.0|~5.5.0|~5.6.0|~5.7.0",
-        "illuminate/database": "~5.4.0|~5.5.0|~5.6.0|~5.7.0",
-        "illuminate/pagination": "~5.4.0|~5.5.0|~5.6.0|~5.7.0",
-        "illuminate/queue": "~5.4.0|~5.5.0|~5.6.0|~5.7.0",
-        "illuminate/support": "~5.4.0|~5.5.0|~5.6.0|~5.7.0"
+        "illuminate/bus": "~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0",
+        "illuminate/contracts": "~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0",
+        "illuminate/database": "~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0",
+        "illuminate/pagination": "~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0",
+        "illuminate/queue": "~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0",
+        "illuminate/support": "~5.4.0|~5.5.0|~5.6.0|~5.7.0|~5.8.0"
     },
     "require-dev": {
         "algolia/algoliasearch-client-php": "^2.2",