Merge pull request #44 from Perturbatio/allow-illuminate-5.8

Added support for illuminate/support 5.8

Author: mpociot

composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^7.1",
-        "illuminate/support": "5.5.*|5.6.*|5.7.*"
+        "illuminate/support": "5.5.*|5.6.*|5.7.*|5.8.*"
     },
     "require-dev": {
         "orchestra/testbench": "3.6.*",