diff --git a/package-lock.json b/package-lock.json
index d2d41c2..ba7ddd8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -344,15 +344,23 @@
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+        }
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@@ -671,6 +679,24 @@
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+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
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+      "requires": {
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
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@@ -1331,6 +1374,12 @@
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@@ -1539,6 +1588,15 @@
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+      "resolved": "https://registry.npmjs.org/default-require-extensions/-/default-require-extensions-2.0.0.tgz",
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+      "dev": true,
+      "requires": {
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@@ -1780,6 +1838,12 @@
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+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
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@@ -1999,12 +2063,6 @@
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@@ -2026,6 +2084,16 @@
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+      "resolved": "https://registry.npmjs.org/fileset/-/fileset-2.0.3.tgz",
+      "integrity": "sha1-jnVIqW08wjJ+5eZ0FocjozO7oqA=",
+      "dev": true,
+      "requires": {
+        "glob": "^7.0.3",
+        "minimatch": "^3.0.3"
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@@ -2951,6 +3019,12 @@
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+    "html-escaper": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
+      "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
+      "dev": true
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@@ -3247,12 +3321,20 @@
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-      "resolved": "",
+      "resolved": "https://registry.npmjs.org/istanbul-api/-/istanbul-api-2.1.1.tgz",
+      "integrity": "sha512-kVmYrehiwyeBAk/wE71tW6emzLiHGjYIiDrc8sfyty4F8M02/lrgXSm+R1kXysmF20zArvmZXjlE/mg24TVPJw==",
       "dev": true,
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+        "async": "^2.6.1",
+        "compare-versions": "^3.2.1",
+        "fileset": "^2.0.3",
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+        "istanbul-reports": "^2.1.1",
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@@ -3264,6 +3346,15 @@
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+    "istanbul-lib-hook": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-hook/-/istanbul-lib-hook-2.0.7.tgz",
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+      }
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@@ -3279,6 +3370,50 @@
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+    "istanbul-lib-report": {
+      "version": "2.0.8",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-report/-/istanbul-lib-report-2.0.8.tgz",
+      "integrity": "sha512-fHBeG573EIihhAblwgxrSenp0Dby6tJMFR/HvlerBsrCTD5bkUuoNtn3gVh29ZCS824cGGBPn7Sg7cNk+2xUsQ==",
+      "dev": true,
+      "requires": {
+        "istanbul-lib-coverage": "^2.0.5",
+        "make-dir": "^2.1.0",
+        "supports-color": "^6.1.0"
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+          "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.5.tgz",
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+          "dev": true
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+          "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-2.1.0.tgz",
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+          "dev": true,
+          "requires": {
+            "pify": "^4.0.1",
+            "semver": "^5.6.0"
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+        "pify": {
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+          "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
+          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+          "dev": true
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+        "supports-color": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
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@@ -3300,6 +3435,15 @@
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+      "resolved": "https://registry.npmjs.org/istanbul-reports/-/istanbul-reports-2.2.7.tgz",
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+      "dev": true,
+      "requires": {
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+      }
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@@ -5128,6 +5272,16 @@
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       "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls="
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+    "js-yaml": {
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+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
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+      "requires": {
+        "argparse": "^1.0.7",
+        "esprima": "^4.0.0"
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@@ -7416,6 +7570,12 @@
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+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
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