Update composer.json

Add Illuminate version 7 support

Author: mmanzano

composer.json

@@ -9,10 +9,10 @@
     "license": "MIT",
     "require": {
         "php": ">=7.1.0",
-        "illuminate/support": "6.*",
-        "illuminate/notifications": "6.*",
-        "illuminate/console": "6.*",
-        "illuminate/database": "6.*"
+        "illuminate/support": "6.*|7.*",
+        "illuminate/notifications": "6.*|7.*",
+        "illuminate/console": "6.*|7.*",
+        "illuminate/database": "6.*|7.*"
     },
     "autoload": {
         "psr-4": {