diff --git a/.eslintrc b/.eslintrc
index a0d03d6..e8bc977 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,5 +1,10 @@
 {
   "extends": "eslint:recommended",
+  "rules": {
+    "no-prototype-builtins": "off",
+    "no-unused-vars": "off",
+    "no-redeclare": "off"
+  },
   "parserOptions": {
     "ecmaVersion": 2017
   },
diff --git a/package-lock.json b/package-lock.json
index af3b4df..42b8c87 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -160,9 +160,9 @@
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-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.5.tgz",
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+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.2.1.tgz",
+      "integrity": "sha512-JD0xT5FCRDNyjDda3Lrg/IxFscp9q4tiYtxE1/nOzlKCk7hIRuYjhq1kCNkbPjMRMZuFq20HNQn1I9k8Oj0E+Q=="
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@@ -170,9 +170,9 @@
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-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
-      "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
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@@ -198,9 +198,9 @@
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-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
-      "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw=="
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ=="
     },
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       "version": "2.1.1",
@@ -355,9 +355,9 @@
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-      "version": "3.5.1",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.1.tgz",
-      "integrity": "sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA=="
+      "version": "3.5.5",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.5.tgz",
+      "integrity": "sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w=="
     },
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@@ -417,35 +417,31 @@
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-      "version": "11.3.2",
-      "resolved": "https://registry.npmjs.org/cacache/-/cacache-11.3.2.tgz",
-      "integrity": "sha512-E0zP4EPGDOaT2chM08Als91eYnf8Z+eH1awwwVsngUmgppfM5jjJ8l3z5vO5p5w/I3LsiXawb1sW0VY65pQABg==",
+      "version": "12.0.2",
+      "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.2.tgz",
+      "integrity": "sha512-ifKgxH2CKhJEg6tNdAwziu6Q33EvuG26tYcda6PT3WKisZcYDXsnEdnRv67Po3yCzFfaSoMjGZzJyD2c3DT1dg==",
       "requires": {
-        "bluebird": "^3.5.3",
+        "bluebird": "^3.5.5",
         "chownr": "^1.1.1",
         "figgy-pudding": "^3.5.1",
-        "glob": "^7.1.3",
+        "glob": "^7.1.4",
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+        "infer-owner": "^1.0.3",
         "lru-cache": "^5.1.1",
         "mississippi": "^3.0.0",
         "mkdirp": "^0.5.1",
         "move-concurrently": "^1.0.1",
         "promise-inflight": "^1.0.1",
-        "rimraf": "^2.6.2",
+        "rimraf": "^2.6.3",
         "ssri": "^6.0.1",
         "unique-filename": "^1.1.1",
         "y18n": "^4.0.0"
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-          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
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-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
-          "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
+          "version": "7.1.4",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
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@@ -456,9 +452,9 @@
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+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.0.tgz",
+          "integrity": "sha512-jpSvDPV4Cq/bgtpndIWbI5hmYxhQGHPC4d4cqBPb4DLniCfhJokdXhwhaDuLBGLQdvvRum/UiX6ECVIPvDXqdg=="
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@@ -500,18 +496,10 @@
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-      "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
-      "integrity": "sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=",
-      "requires": {
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-      }
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-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz",
-      "integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+      "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ=="
     },
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@@ -542,9 +530,9 @@
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-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-      "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
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@@ -557,14 +545,9 @@
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-      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.1.tgz",
-      "integrity": "sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g=="
-    },
-    "circular-json": {
-      "version": "0.3.3",
-      "resolved": "https://registry.npmjs.org/circular-json/-/circular-json-0.3.3.tgz",
-      "integrity": "sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A=="
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.2.tgz",
+      "integrity": "sha512-GkfeAQh+QNy3wquu9oIZr6SS5x7wGdSgNQvD10X3r+AZr1Oys22HW8kAmDMvNg2+Dm0TeGaEuO8gFwdBXxwO8A=="
     },
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@@ -895,9 +878,9 @@
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-      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
-      "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
+      "integrity": "sha512-yS+Q5i3hBf7GBkd4KG8a7eBNNWNGLTaEwwYWUijIYM7zrlYDM0BFXHjjPWlWZ1Rg7UaddZeIDmi9jF3HmqiQ2w==",
       "requires": {
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@@ -944,8 +927,7 @@
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-      "dev": true
+      "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
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@@ -1000,9 +982,9 @@
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-      "version": "4.2.5",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.5.tgz",
-      "integrity": "sha512-n6wvpdE43VFtJq+lUDYDBFUwV8TZbuGXLV4D6wKafg13ldznKsyEvatubnmUe31zcvelSzOHF+XbaT+Bl9ObDg=="
+      "version": "4.2.8",
+      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
+      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w=="
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@@ -1024,53 +1006,53 @@
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+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.1.0.tgz",
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       "requires": {
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-        "ajv": "^6.5.3",
+        "ajv": "^6.10.0",
         "chalk": "^2.1.0",
         "cross-spawn": "^6.0.5",
         "debug": "^4.0.1",
-        "doctrine": "^2.1.0",
-        "eslint-scope": "^4.0.0",
+        "doctrine": "^3.0.0",
+        "eslint-scope": "^5.0.0",
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         "eslint-visitor-keys": "^1.0.0",
-        "espree": "^5.0.0",
+        "espree": "^6.0.0",
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-        "glob": "^7.1.2",
+        "glob-parent": "^5.0.0",
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-        "inquirer": "^6.1.0",
-        "js-yaml": "^3.12.0",
+        "inquirer": "^6.4.1",
+        "is-glob": "^4.0.0",
+        "js-yaml": "^3.13.1",
         "json-stable-stringify-without-jsonify": "^1.0.1",
         "levn": "^0.3.0",
-        "lodash": "^4.17.5",
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-        "strip-json-comments": "^2.0.1",
-        "table": "^5.0.2",
-        "text-table": "^0.2.0"
+        "semver": "^6.1.2",
+        "strip-ansi": "^5.2.0",
+        "strip-json-comments": "^3.0.1",
+        "table": "^5.2.3",
+        "text-table": "^0.2.0",
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+          "version": "6.10.2",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
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@@ -1079,9 +1061,9 @@
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-          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg="
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
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@@ -1093,6 +1075,13 @@
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             "shebang-command": "^1.2.0",
             "which": "^1.2.9"
+          },
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+            }
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@@ -1103,63 +1092,52 @@
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@@ -4000,6 +4042,11 @@
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+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
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@@ -4009,6 +4056,24 @@
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+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
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+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
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@@ -4257,17 +4322,17 @@
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-      "resolved": "https://registry.npmjs.org/tar/-/tar-4.4.8.tgz",
-      "integrity": "sha512-LzHF64s5chPQQS0IYBn9IN5h3i98c12bo4NCO7e0sGM2llXQ3p2FGC5sdENN4cTW48O915Sh+x+EXx7XW96xYQ==",
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+      "resolved": "https://registry.npmjs.org/tar/-/tar-4.4.10.tgz",
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-        "minipass": "^2.3.4",
-        "minizlib": "^1.1.1",
+        "minipass": "^2.3.5",
+        "minizlib": "^1.2.1",
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         "safe-buffer": "^5.1.2",
-        "yallist": "^3.0.2"
+        "yallist": "^3.0.3"
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@@ -4509,9 +4574,9 @@
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-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
-      "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",
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@@ -4594,9 +4659,9 @@
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-      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.1.tgz",
-      "integrity": "sha512-n9cU6+gITaVu7VGj1Z8feKMmfAjEAQGhwD9fE3zvpRRa0wEIx8ODYkVGfSc94M2OX00tUFV8wH3zYbm1I8mxFg==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.2.tgz",
+      "integrity": "sha512-zoWr9ObaxALD3DOPfjPSqxt4fnZiWblxHIgeWqW8x7UqDzEtHEQLzji2cuJYQFCU6KmoJikOYAZlrTHHebjx2w==",
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@@ -4674,6 +4739,11 @@
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       "dev": true
     },
+    "v8-compile-cache": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.0.3.tgz",
+      "integrity": "sha512-CNmdbwQMBjwr9Gsmohvm0pbL954tJrNzf6gWL3K+QMQf00PF7ERGrEiLgjuU3mKreLC2MeGhUsNV9ybTbLgd3w=="
+    },
     "validate-npm-package-license": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz",
@@ -4809,9 +4879,9 @@
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-      "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
-      "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/write/-/write-1.0.3.tgz",
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@@ -4837,7 +4907,8 @@
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       "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
     },
     "yapool": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index c78869f..42764c3 100644
--- a/package.json
+++ b/package.json
@@ -16,11 +16,11 @@
     "test": "grunt test"
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-    "grunt-eslint": "^21.0.0",
-    "lodash": "^4.17.11",
-    "pacote": "^9.3.0",
-    "puppeteer": "^1.13.0",
+    "chalk": "^2.4.2",
+    "grunt-eslint": "^22.0.0",
+    "lodash": "^4.17.15",
+    "pacote": "^9.5.4",
+    "puppeteer": "^1.19.0",
     "rimraf": "^2.6.3",
     "sprintf-js": "^1.1.2"
   },