Replace custom tap function with josephlavin/tap

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "077bd67921b19ca9f0e2dbb0b3389f85",
+    "content-hash": "a5025c0de779662a8b22145c20400a3e",
     "packages": [
         {
             "name": "anahkiasen/underscore-php",
@@ -878,6 +878,45 @@
             ],
             "time": "2012-11-02T14:49:47+00:00"
         },
+        {
+            "name": "josephlavin/tap",
+            "version": "v1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/josephlavin/tap.git",
+                "reference": "8733d96fb9b7d7dca204dfe59ec3ff34f3c69be9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/josephlavin/tap/zipball/8733d96fb9b7d7dca204dfe59ec3ff34f3c69be9",
+                "reference": "8733d96fb9b7d7dca204dfe59ec3ff34f3c69be9",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.6.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~5.7"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "src/tap.php",
+                    "src/TapProxy.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Stand alone port of Laravel's tap method.",
+            "keywords": [
+                "laravel",
+                "php",
+                "tap"
+            ],
+            "time": "2017-09-24T23:36:28+00:00"
+        },
         {
             "name": "justinrainbow/json-schema",
             "version": "5.2.1",