Upgrade to Gatsby v2

.eslintrc

@@ -1,8 +1,15 @@
 {
     "parser": "babel-eslint",
-    "extends": "airbnb",
+    "extends": "airbnb-base",
+    "env": {
+      "browser": true,
+      "node": true,
+      "es6": true,
+      "jest/globals": true
+    },
     "plugins": [
         "react",
+        "jest",
         "jsx-a11y",
         "import"
     ],
@@ -10,16 +17,49 @@
         "graphql": true
     },
     "rules": {
-        "react/jsx-filename-extension": [0],
-        "react/prefer-stateless-function": [0],
-        "react/prop-types": [0],
-        "import/no-extraneous-dependencies": [0],
-        "comma-dangle": ["error", "never"],
-        "jsx-a11y/anchor-is-valid": [0],
-        "prefer-destructuring": [0],
-        "object-curly-newline": ["error", { "multiline": true, "minProperties": 5 }],
-        "arrow-body-style": ["error", "as-needed", { "requireReturnForObjectLiteral": true }],
-        "import/extensions": [0],
-        "no-console": "off"
+      "comma-dangle": 0,
+      "import/imports-first": 0,
+      "global-require": 0,
+      "class-methods-use-this": 0,
+      "arrow-body-style": [
+        2,
+        "as-needed"
+      ],
+      "arrow-parens": [
+        "error",
+        "always"
+      ],
+      "import/no-extraneous-dependencies": [
+        "error",
+        {
+          "devDependencies": true
+        }
+      ],
+      "no-debugger": 0,
+      "dot-notation": 0,
+      "no-console": 0,
+      "new-cap": 0,
+      "strict": 0,
+      "no-param-reassign": [
+        "error",
+        {
+          "props": false
+        }
+      ],
+      "no-underscore-dangle": 0,
+      "no-use-before-define": 0,
+      "eol-last": 0,
+      "no-shadow": 0,
+      "quotes": [
+        2,
+        "single"
+      ],
+      "jsx-quotes": [
+        0,
+        "prefer-single"
+      ],
+      "react/jsx-no-undef": 1,
+      "react/jsx-uses-react": 1,
+      "react/jsx-uses-vars": 1
     }
 }