Merge pull request #154 from jilster/laravel-5.7

Update composer.json for Laravel 5.7 support

Author: baopham

composer.json

@@ -4,8 +4,8 @@
     "keywords": ["laravel", "dynamodb", "aws"],
     "require": {
         "aws/aws-sdk-php": "^3.0.0",
-        "illuminate/support": "5.1.* || 5.2.* || 5.3.* || 5.4.* || 5.5.* || 5.6.*",
-        "illuminate/database": "5.1.* || 5.2.* || 5.3.* || 5.4.* || 5.5.* || 5.6.*"
+        "illuminate/support": "5.1.* || 5.2.* || 5.3.* || 5.4.* || 5.5.* || 5.6.* || 5.7.*",
+        "illuminate/database": "5.1.* || 5.2.* || 5.3.* || 5.4.* || 5.5.* || 5.6.* || 5.7.*"
     },
     "license": "MIT",
     "authors": [