Merge pull request #52 from spinen/feature/upgradeToLaravel6

Allow Laravel 6

Author: ssfinney

composer.json

@@ -17,14 +17,14 @@
     ],
     "require": {
         "php": ">=7.2",
-        "illuminate/support": "5.5.*|5.6.*|5.7.*|5.8.*",
+        "illuminate/support": "5.5.*|5.6.*|5.7.*|5.8.*|6.0.*",
         "swiftmailer/swiftmailer": "~6.0",
-        "phpunit/phpunit": "~7.0.1|^7.5"
+        "phpunit/phpunit": "~7.0.1|~8.0"
     },
     "require-dev": {
         "mockery/mockery": "^1",
-        "psy/psysh": "^0.5.1",
-        "symfony/thanks": "^1.0",
+        "psy/psysh": "^0.9.9",
+        "symfony/thanks": "^1.1",
         "symfony/var-dumper": "~3.0|^4.2"
     },
     "autoload": {