diff --git a/package-lock.json b/package-lock.json
index b321750..80bfbe0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,11 +13,6 @@
         "negotiator": "0.6.1"
       }
     },
-    "acorn": {
-      "version": "5.4.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.4.1.tgz",
-      "integrity": "sha512-XLmq3H/BVvW6/GbxKryGxWORz1ebilSsUDlyC27bXhWGWAZWkGwS6FLHjOlwFXNFoWFQEO/Df4u0YYd0K3BQgQ=="
-    },
     "acorn-jsx": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
@@ -514,9 +509,9 @@
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
     },
     "eslint": {
-      "version": "4.17.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.17.0.tgz",
-      "integrity": "sha512-AyxBUCANU/o/xC0ijGMKavo5Ls3oK6xykiOITlMdjFjrKOsqLrA7Nf5cnrDgcKrHzBirclAZt63XO7YZlVUPwA==",
+      "version": "4.19.1",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.19.1.tgz",
+      "integrity": "sha512-bT3/1x1EbZB7phzYu7vCr1v3ONuzDtX8WjuM9c0iYxe+cq+pwcKEoQjl7zd3RpC6YOLgnSy3cTN58M2jcoPDIQ==",
       "requires": {
         "ajv": "^5.3.0",
         "babel-code-frame": "^6.22.0",
@@ -527,7 +522,7 @@
         "doctrine": "^2.1.0",
         "eslint-scope": "^3.7.1",
         "eslint-visitor-keys": "^1.0.0",
-        "espree": "^3.5.2",
+        "espree": "^3.5.4",
         "esquery": "^1.0.0",
         "esutils": "^2.0.2",
         "file-entry-cache": "^2.0.0",
@@ -549,37 +544,57 @@
         "path-is-inside": "^1.0.2",
         "pluralize": "^7.0.0",
         "progress": "^2.0.0",
+        "regexpp": "^1.0.1",
         "require-uncached": "^1.0.3",
         "semver": "^5.3.0",
         "strip-ansi": "^4.0.0",
         "strip-json-comments": "~2.0.1",
-        "table": "^4.0.1",
+        "table": "4.0.2",
         "text-table": "~0.2.0"
       },
       "dependencies": {
+        "acorn": {
+          "version": "5.7.3",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
+          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw=="
+        },
         "ansi-regex": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
           "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg="
         },
         "ansi-styles": {
-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
-          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
           "requires": {
             "color-convert": "^1.9.0"
           }
         },
         "chalk": {
-          "version": "2.3.0",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.0.tgz",
-          "integrity": "sha512-Az5zJR2CBujap2rqXGaJKaPHyJ0IrUimvYNX+ncCy8PJP4ltOGTrHUIo097ZaL2zMeKYpiCdqDvS6zdrTFok3Q==",
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
           "requires": {
-            "ansi-styles": "^3.1.0",
+            "ansi-styles": "^3.2.1",
             "escape-string-regexp": "^1.0.5",
-            "supports-color": "^4.0.0"
+            "supports-color": "^5.3.0"
           }
         },
+        "espree": {
+          "version": "3.5.4",
+          "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.4.tgz",
+          "integrity": "sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==",
+          "requires": {
+            "acorn": "^5.5.0",
+            "acorn-jsx": "^3.0.0"
+          }
+        },
+        "has-flag": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
+        },
         "strip-ansi": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
@@ -589,11 +604,11 @@
           }
         },
         "supports-color": {
-          "version": "4.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.5.0.tgz",
-          "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
           "requires": {
-            "has-flag": "^2.0.0"
+            "has-flag": "^3.0.0"
           }
         }
       }
@@ -612,15 +627,6 @@
       "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
       "integrity": "sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ=="
     },
-    "espree": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.3.tgz",
-      "integrity": "sha512-Zy3tAJDORxQZLl2baguiRU1syPERAIg0L+JB2MWorORgTu/CplzvxS9WWA7Xh4+Q+eOQihNs/1o1Xep8cvCxWQ==",
-      "requires": {
-        "acorn": "^5.4.0",
-        "acorn-jsx": "^3.0.0"
-      }
-    },
     "esprima": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.0.tgz",
@@ -1394,6 +1400,11 @@
       "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz",
       "integrity": "sha1-M2w+/BIgrc7dosn6tntaeVWjNlg="
     },
+    "regexpp": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/regexpp/-/regexpp-1.1.0.tgz",
+      "integrity": "sha512-LOPw8FpgdQF9etWMaAfG/WRthIdXJGYp4mJ2Jgn/2lpkbod9jPn0t9UqN7AxBOKNfzRbYyVfgc7Vk4t/MpnXgw=="
+    },
     "require-uncached": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",