IHF: Laravel 5.5 support.

Author: dmitry-ivanov

composer.json

@@ -10,17 +10,17 @@
         }
     ],
     "require": {
-        "php": ">=5.6.4",
-        "illuminate/support": "5.4.*",
+        "php": ">=7.0",
+        "illuminate/support": "5.5.*",
         "nesbot/carbon": "^1.20",
-        "symfony/filesystem": "^3.2",
-        "symfony/finder": "^3.2",
-        "symfony/process": "^3.2",
-        "symfony/var-dumper": "^3.2",
+        "symfony/filesystem": "^3.3",
+        "symfony/finder": "^3.3",
+        "symfony/process": "^3.3",
+        "symfony/var-dumper": "^3.3",
         "spatie/array-to-xml": "^2.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.7",
+        "phpunit/phpunit": "^6.0",
         "mockery/mockery": "^0.9",
         "illuminated/testing-tools": "^0.6"
     },