chore(dependencies): Bump eslint from 4.13.1 to 4.15.0

Bumps [eslint](https://github.com/eslint/eslint) from 4.13.1 to 4.15.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v4.13.1...v4.15.0)

package-lock.json

@@ -2319,6 +2319,15 @@
         "randombytes": "2.0.5"
       }
     },
+    "doctrine": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
+      "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
+      "dev": true,
+      "requires": {
+        "esutils": "2.0.2"
+      }
+    },
     "dom-serializer": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-0.1.0.tgz",
@@ -2617,9 +2626,9 @@
       }
     },
     "eslint": {
-      "version": "4.13.1",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.13.1.tgz",
-      "integrity": "sha512-UCJVV50RtLHYzBp1DZ8CMPtRSg4iVZvjgO9IJHIKyWU/AnJVjtdRikoUPLB29n5pzMB7TnsLQWf0V6VUJfoPfw==",
+      "version": "4.15.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.15.0.tgz",
+      "integrity": "sha512-zEO/Z1ZUxIQ+MhDVKkVTUYpIPDTEJLXGMrkID+5v1NeQHtCz6FZikWuFRgxE1Q/RV2V4zVl1u3xmpPADHhMZ6A==",
       "dev": true,
       "requires": {
         "ajv": "5.3.0",
@@ -2628,11 +2637,11 @@
         "concat-stream": "1.6.0",
         "cross-spawn": "5.1.0",
         "debug": "3.1.0",
-        "doctrine": "2.0.2",
+        "doctrine": "2.1.0",
         "eslint-scope": "3.7.1",
+        "eslint-visitor-keys": "1.0.0",
         "espree": "3.5.2",
         "esquery": "1.0.0",
-        "estraverse": "4.2.0",
         "esutils": "2.0.2",
         "file-entry-cache": "2.0.0",
         "functional-red-black-tree": "1.0.1",
@@ -2711,25 +2720,6 @@
             "ms": "2.0.0"
           }
         },
-        "doctrine": {
-          "version": "2.0.2",
-          "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.0.2.tgz",
-          "integrity": "sha512-y0tm5Pq6ywp3qSTZ1vPgVdAnbDEoeoc5wlOHXoY1c4Wug/a7JvqHIl7BTvwodaHmejWkK/9dSb3sCYfyo/om8A==",
-          "dev": true,
-          "requires": {
-            "esutils": "2.0.2"
-          }
-        },
-        "espree": {
-          "version": "3.5.2",
-          "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.2.tgz",
-          "integrity": "sha512-sadKeYwaR/aJ3stC2CdvgXu1T16TdYN+qwCpcWbMnGJ8s0zNWemzrvb2GbD4OhmJ/fwpJjudThAlLobGbWZbCQ==",
-          "dev": true,
-          "requires": {
-            "acorn": "5.2.1",
-            "acorn-jsx": "3.0.1"
-          }
-        },
         "external-editor": {
           "version": "2.1.0",
           "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.1.0.tgz",
@@ -2980,6 +2970,22 @@
         "estraverse": "4.2.0"
       }
     },
+    "eslint-visitor-keys": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
+      "integrity": "sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==",
+      "dev": true
+    },
+    "espree": {
+      "version": "3.5.2",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.2.tgz",
+      "integrity": "sha512-sadKeYwaR/aJ3stC2CdvgXu1T16TdYN+qwCpcWbMnGJ8s0zNWemzrvb2GbD4OhmJ/fwpJjudThAlLobGbWZbCQ==",
+      "dev": true,
+      "requires": {
+        "acorn": "5.2.1",
+        "acorn-jsx": "3.0.1"
+      }
+    },
     "esprima": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.0.tgz",

package.json

@@ -36,7 +36,7 @@
     "commitizen": "^2.9.6",
     "core-js": "^2.5.3",
     "cz-conventional-changelog": "^2.1.0",
-    "eslint": "^4.13.1",
+    "eslint": "^4.15.0",
     "eslint-config-airbnb-base": "^12.1.0",
     "eslint-config-prettier": "^2.9.0",
     "eslint-plugin-import": "^2.5.0",