Cleans package json.

Author: ctrlplusb

package-lock.json

@@ -1,24 +1,33 @@
 {
   "name": "react-tree-walker",
   "version": "2.1.3",
-  "description":
-    "Walk a React element tree, executing a provided function against each node.",
+  "description": "Walk a React element tree, executing a provided function against each node.",
   "license": "MIT",
   "main": "commonjs/index.js",
-  "files": ["*.js", "*.md", "umd", "commonjs"],
+  "files": [
+    "*.js",
+    "*.md",
+    "umd",
+    "commonjs"
+  ],
   "repository": {
     "type": "git",
     "url": "https://github.com/ctrlplusb/react-tree-walker.git"
   },
   "homepage": "https://github.com/ctrlplusb/react-tree-walker#readme",
   "author": "Sean Matheson <sean@ctrlplusb.com>",
-  "keywords": ["react", "react-element", "util", "tree", "visitor"],
+  "keywords": [
+    "react",
+    "react-element",
+    "util",
+    "tree",
+    "visitor"
+  ],
   "scripts": {
     "precommit": "lint-staged && npm run test",
     "build": "babel-node ./tools/scripts/build.js",
     "check": "npm run lint && npm run test",
-    "clean":
-      "rimraf ./commonjs && rimraf ./umd && rimraf ./coverage && rimraf ./umd",
+    "clean": "rimraf ./commonjs && rimraf ./umd && rimraf ./coverage && rimraf ./umd",
     "lint": "eslint src",
     "prepublish": "npm run build",
     "test": "jest",
@@ -71,14 +80,21 @@
     "webpack-hot-middleware": "^2.19.1"
   },
   "jest": {
-    "collectCoverageFrom": ["src/**/*.{js,jsx}"],
-    "snapshotSerializers": ["<rootDir>/node_modules/enzyme-to-json/serializer"],
+    "collectCoverageFrom": [
+      "src/**/*.{js,jsx}"
+    ],
+    "snapshotSerializers": [
+      "<rootDir>/node_modules/enzyme-to-json/serializer"
+    ],
     "testPathIgnorePatterns": [
       "<rootDir>/(commonjs|coverage|flow-typed|node_modules|tools|umd)/"
     ]
   },
   "lint-staged": {
-    "src/**/*.js": ["prettier --write", "git add"]
+    "src/**/*.js": [
+      "prettier --write",
+      "git add"
+    ]
   },
   "eslintConfig": {
     "root": true,
@@ -89,15 +105,21 @@
       "node": true,
       "jest": true
     },
-    "extends": ["airbnb", "prettier"],
+    "extends": [
+      "airbnb",
+      "prettier"
+    ],
     "rules": {
       "camelcase": 0,
       "import/prefer-default-export": 0,
       "import/no-extraneous-dependencies": 0,
       "no-underscore-dangle": 0,
       "react/no-array-index-key": 0,
       "react/react-in-jsx-scope": 0,
-      "semi": [2, "never"],
+      "semi": [
+        2,
+        "never"
+      ],
       "react/forbid-prop-types": 0,
       "react/jsx-filename-extension": 0,
       "react/sort-comp": 0