Add L6 and L7 support

Author: MCMatters

.gitignore

@@ -1,3 +1,4 @@
 .idea/
 vendor/
 .DS_Store
+composer.lock

composer.json

@@ -9,9 +9,9 @@
     ],
     "require": {
         "php": ">=7.0",
-        "illuminate/support": "^5.2",
-        "illuminate/database": "^5.2",
-        "illuminate/console": "^5.2"
+        "illuminate/support": "^5.2 || 6.* || 7.*",
+        "illuminate/database": "^5.2 || 6.* || 7.*",
+        "illuminate/console": "^5.2 || 6.* || 7.*"
     },
     "autoload": {
         "psr-4": {