re-added missing piwik contrib module

composer.json

@@ -61,6 +61,7 @@
         "drupal/module_missing_message_fixer": "1.0.0-beta2",
         "drupal/path_alias_xt": "1.x-dev",
         "drupal/pathauto": "1.3.0",
+        "drupal/piwik": "^1.4",
         "drupal/profile": "1.0.0-rc1",
         "drupal/redirect": "1.3.0",
         "drupal/redis": "1.1.0",

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": "778b33a2a648b1dac52f177e42734dc2",
+    "content-hash": "2528c8722810b9bf53328bd5b117347c",
     "packages": [
         {
             "name": "alchemy/zippy",
@@ -4829,6 +4829,63 @@
                 "source": "https://git.drupalcode.org/project/pathauto"
             }
         },
+        {
+            "name": "drupal/piwik",
+            "version": "1.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://git.drupalcode.org/project/piwik.git",
+                "reference": "8.x-1.4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://ftp.drupal.org/files/projects/piwik-8.x-1.4.zip",
+                "reference": "8.x-1.4",
+                "shasum": "3692831f4b3de636e90679fb052ba8f30e49ac97"
+            },
+            "require": {
+                "drupal/core": "~8.0",
+                "drupal/matomo": "^1.0"
+            },
+            "require-dev": {
+                "drupal/php": "*",
+                "drupal/token": "*"
+            },
+            "type": "drupal-module",
+            "extra": {
+                "branch-alias": {
+                    "dev-1.x": "1.x-dev"
+                },
+                "drupal": {
+                    "version": "8.x-1.4",
+                    "datestamp": "1530437786",
+                    "security-coverage": {
+                        "status": "covered",
+                        "message": "Covered by Drupal's security advisory policy"
+                    }
+                }
+            },
+            "notification-url": "https://packages.drupal.org/8/downloads",
+            "license": [
+                "GPL-2.0+"
+            ],
+            "authors": [
+                {
+                    "name": "hass",
+                    "homepage": "https://www.drupal.org/u/hass"
+                },
+                {
+                    "name": "See other contributors",
+                    "homepage": "https://www.drupal.org/node/247808/committers"
+                }
+            ],
+            "description": "Adds Piwik javascript tracking code to all your site's pages",
+            "homepage": "https://www.drupal.org/project/piwik",
+            "support": {
+                "source": "http://git.drupal.org/project/piwik.git",
+                "issues": "https://www.drupal.org/project/issues/piwik"
+            }
+        },
         {
             "name": "drupal/profile",
             "version": "1.0.0-rc1",