diff --git a/package-lock.json b/package-lock.json
index d1014b8..91b2022 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1742,9 +1742,9 @@
       }
     },
     "acorn": {
-      "version": "6.1.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-      "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-dynamic-import": {
@@ -1761,6 +1761,14 @@
       "requires": {
         "acorn": "^6.0.1",
         "acorn-walk": "^6.0.1"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "6.4.2",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+          "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
+          "dev": true
+        }
       }
     },
     "acorn-walk": {
@@ -6968,14 +6976,6 @@
         "whatwg-url": "^6.4.1",
         "ws": "^5.2.0",
         "xml-name-validator": "^3.0.0"
-      },
-      "dependencies": {
-        "acorn": {
-          "version": "5.7.3",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
-          "dev": true
-        }
       }
     },
     "jsesc": {
@@ -11085,7 +11085,7 @@
             },
             "async-some": {
               "version": "1.0.2",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-TYqBYg1ZWHkbW5j4AtMgd3bpVQk=",
               "dev": true,
               "requires": {
@@ -11189,7 +11189,7 @@
             },
             "dezalgo": {
               "version": "1.0.3",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-f3Qt4Gb8dIvI24IFad3c5Jvw1FY=",
               "dev": true,
               "requires": {
@@ -11244,7 +11244,7 @@
             },
             "fstream": {
               "version": "1.0.10",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-YE6Kkv4m/9n2+uMDmdSYThqyKCI=",
               "dev": true,
               "requires": {
@@ -11285,7 +11285,7 @@
             },
             "github-url-from-username-repo": {
               "version": "1.0.2",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-fdeTMNKr5pwQws73lxTJchV5Hfo=",
               "dev": true
             },
@@ -11518,7 +11518,7 @@
             },
             "nopt": {
               "version": "3.0.6",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-xkZdvwirzU2zWTF/eaxopkayj/k=",
               "dev": true,
               "requires": {
@@ -11852,7 +11852,7 @@
             },
             "read-installed": {
               "version": "4.0.3",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-/5uLZ/GH0eTCm5/rMfayI6zRkGc=",
               "dev": true,
               "requires": {
@@ -11873,7 +11873,7 @@
                 },
                 "readdir-scoped-modules": {
                   "version": "1.0.2",
-                  "resolved": "",
+                  "resolved": false,
                   "integrity": "sha1-n6+jfShr5dksuuve4DDcm19AZ0c=",
                   "dev": true,
                   "requires": {
@@ -12660,7 +12660,7 @@
             },
             "tar": {
               "version": "2.2.1",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
               "dev": true,
               "requires": {
@@ -12728,7 +12728,7 @@
             },
             "validate-npm-package-name": {
               "version": "2.2.2",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-9laVsi9zJEQgGaPH+jmm5/0pkIU=",
               "dev": true,
               "requires": {
@@ -12768,7 +12768,7 @@
             },
             "write-file-atomic": {
               "version": "1.1.4",
-              "resolved": "",
+              "resolved": false,
               "integrity": "sha1-sfUtwujcDjywTRh6JfdYo4qQyjs=",
               "dev": true,
               "requires": {
@@ -15586,6 +15586,14 @@
         "terser-webpack-plugin": "^1.1.0",
         "watchpack": "^1.5.0",
         "webpack-sources": "^1.3.0"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "6.4.2",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+          "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
+          "dev": true
+        }
       }
     },
     "webpack-cli": {