Update to allow Laravel 5.8 (#195)

Update illuminate/support & laravel/framework to 5.8

Co-authored-by: Alex Bouma <[email protected]>

Author: squiaios

composer.json

@@ -13,7 +13,7 @@
   ],
   "require": {
     "php": "^7.1",
-    "illuminate/support": "5.0.*|5.1.*|5.2.*|5.3.*|5.4.*|5.5.*|5.6.*|5.7.*",
+    "illuminate/support": "5.0.*|5.1.*|5.2.*|5.3.*|5.4.*|5.5.*|5.6.*|5.7.*|5.8.*",
     "sentry/sentry": "2.0.0-beta2"
   },
   "require-dev": {