chore(package): update dependencies

Author: greenkeeper[bot]

package.json

@@ -43,11 +43,11 @@
   "devDependencies": {
     "@vue/test-utils": "^1.0.0-beta.13",
     "@vuedoc/md": "^1.1.1",
-    "autoprefixer": "^7.1.2",
+    "autoprefixer": "^8.5.2",
     "babel-core": "^6.22.1",
     "babel-eslint": "^8.2.1",
     "babel-helper-vue-jsx-merge-props": "^2.0.3",
-    "babel-jest": "^22.4.3",
+    "babel-jest": "^23.0.1",
     "babel-loader": "^7.1.4",
     "babel-plugin-dynamic-import-node": "^1.2.0",
     "babel-plugin-syntax-jsx": "^6.18.0",
@@ -62,37 +62,37 @@
     "element-ui": "^2.4.0",
     "eslint": "^4.15.0",
     "eslint-config-guo": "^0.8.0",
-    "eslint-friendly-formatter": "^3.0.0",
-    "eslint-loader": "^1.7.1",
+    "eslint-friendly-formatter": "^4.0.1",
+    "eslint-loader": "^2.0.0",
     "eslint-plugin-html": "^4.0.2",
     "eslint-plugin-vue": "^4.0.0",
     "extract-text-webpack-plugin": "^3.0.0",
     "file-loader": "^1.1.11",
     "friendly-errors-webpack-plugin": "^1.6.1",
-    "html-webpack-plugin": "^2.30.1",
+    "html-webpack-plugin": "^3.2.0",
     "jest": "^23.1.0",
     "jest-serializer-vue": "^2.0.0",
     "node-notifier": "^5.1.2",
-    "optimize-css-assets-webpack-plugin": "^3.2.0",
-    "ora": "^1.2.0",
+    "optimize-css-assets-webpack-plugin": "^4.0.2",
+    "ora": "^2.1.0",
     "portfinder": "^1.0.13",
     "postcss-import": "^11.0.0",
     "postcss-loader": "^2.0.8",
     "postcss-url": "^7.2.1",
     "rimraf": "^2.6.0",
     "semver": "^5.3.0",
-    "shelljs": "^0.7.6",
+    "shelljs": "^0.8.2",
     "uglifyjs-webpack-plugin": "^1.1.1",
-    "url-loader": "^0.5.8",
+    "url-loader": "^1.0.1",
     "vue": "^2.5.16",
     "vue-jest": "^2.3.0",
-    "vue-loader": "^13.3.0",
+    "vue-loader": "^15.2.4",
     "vue-server-renderer": "^2.5.16",
-    "vue-style-loader": "^3.0.1",
+    "vue-style-loader": "^4.1.0",
     "vue-template-compiler": "^2.5.16",
-    "webpack": "^3.6.0",
+    "webpack": "^4.10.2",
     "webpack-bundle-analyzer": "^2.13.1",
-    "webpack-dev-server": "^2.9.1",
+    "webpack-dev-server": "^3.1.4",
     "webpack-merge": "^4.1.2"
   },
   "engines": {