Update dependencies (#33)

* Update autoprefixer

* Update .eslintrc

* Upgrade chalk

* Upgrade chroma-js

* Upgrade postcss-loader

* Upgrade postcss-flexbugs-fixes

* Update yarn.lock

* Upgrade url-loader

* Upgrade style-loader

* Upgrade dotenv

* Upgrade dotenv-expand

* Upgrade whatwg-fetch

* Upgrade react-router-dom

* Upgrade several dev dependencies

* Upgrade babel-loader

* Upgrade jest

.eslintrc

@@ -1,3 +1,10 @@
 {
-  "extends": "react-app"
+  "extends": [
+    "react-app"
+  ],
+  "settings": {
+    "react": {
+      "version": "16.8.5"
+    }
+  }
 }

package.json

@@ -2,57 +2,58 @@
   "name": "green-spider-webapp",
   "version": "0.1.0",
   "private": true,
+  "homepage": "https://green-spider.netzbegruenung.de",
   "dependencies": {
-    "autoprefixer": "7.1.6",
+    "autoprefixer": "^9.5.0",
     "axios": "^0.18.0",
     "babel-core": "^6.26.3",
-    "babel-eslint": "7.2.3",
-    "babel-jest": "20.0.3",
-    "babel-loader": "7.1.2",
+    "babel-eslint": "9.0.0",
+    "babel-jest": "23.6.0",
+    "babel-loader": "7.1.5",
     "babel-preset-react-app": "^3.1.2",
     "babel-runtime": "6.26.0",
     "bootstrap": ">=4.3.1",
     "case-sensitive-paths-webpack-plugin": "^2.2.0",
-    "chalk": "1.1.3",
-    "chroma-js": "^1.4.0",
+    "chalk": "^2.4.2",
+    "chroma-js": "^2.0.3",
     "css-loader": "0.28.7",
-    "dotenv": "4.0.0",
-    "dotenv-expand": "4.2.0",
-    "eslint": "4.10.0",
-    "eslint-config-react-app": "^2.1.0",
-    "eslint-loader": "1.9.0",
+    "dotenv": "^7.0.0",
+    "dotenv-expand": "^5.1.0",
+    "eslint": "5.15.3",
+    "eslint-config-react-app": "^3.0.8",
+    "eslint-loader": "2.1.2",
     "eslint-plugin-flowtype": "2.39.1",
     "eslint-plugin-import": "^2.16.0",
-    "eslint-plugin-jsx-a11y": "5.1.1",
+    "eslint-plugin-jsx-a11y": "6.2.1",
     "eslint-plugin-react": "^7.12.4",
     "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "1.1.5",
     "fs-extra": "3.0.1",
     "history": "^4.9.0",
     "html-webpack-plugin": "2.29.0",
-    "jest": "20.0.4",
+    "jest": "23.6.0",
     "lodash": "^4.17.11",
     "lunr": "^2.3.6",
     "merge": "1.2.1",
     "object-assign": "4.1.1",
-    "postcss-flexbugs-fixes": "3.2.0",
-    "postcss-loader": "2.0.8",
+    "postcss-flexbugs-fixes": "4.1.0",
+    "postcss-loader": "3.0.0",
     "promise": "^8.0.3",
     "punycode": "^2.1.1",
     "raf": "^3.4.1",
     "react": "^16.8.5",
     "react-dev-utils": "^5.0.3",
     "react-dom": "^16.8.5",
-    "react-router-dom": "^4.3.1",
+    "react-router-dom": "^5.0.0",
     "resolve": "^1.10.0",
-    "style-loader": "0.19.0",
+    "style-loader": "^0.23.1",
     "sw-precache-webpack-plugin": "^0.11.5",
     "underscore": "^1.9.1",
-    "url-loader": "0.6.2",
+    "url-loader": "1.1.2",
     "webpack": "3.8.1",
     "webpack-dev-server": "2.11.3",
     "webpack-manifest-plugin": "1.3.2",
-    "whatwg-fetch": "2.0.3"
+    "whatwg-fetch": "3.0.0"
   },
   "devDependencies": {},
   "scripts": {