Upgrade RN and friends

.eslintrc.js

@@ -0,0 +1,46 @@
+module.exports = {
+  root: true,
+  extends: [
+    'eslint:recommended',
+    'plugin:react/recommended',
+  ],
+  env: {
+    node: true,
+    mocha: true,
+    es6: true,
+  },
+  parser: 'babel-eslint',
+  parserOptions: {
+    sourceType: 'module',
+    ecmaFeatures: {
+      jsx: true,
+    },
+    ecmaVersion: 2018,
+  },
+  plugins: ['react'],
+  settings: {
+    react: {
+      version: require('./package.json').dependencies.react,
+    },
+  },
+  rules: {
+    indent: ['error', 2],
+    'no-console': ['error', { 'allow': ['warn', 'error'] }],
+    'space-before-function-paren': 0,
+    semi: ['warn', 'never'],
+    'space-infix-ops': ['warn'],
+    'no-var': 'error',
+    'prefer-const': 'error',
+    'no-trailing-spaces': 'error',
+    'react/prop-types': 2,
+    'max-len': [
+      1,
+      {
+        'ignoreStrings': true,
+        'ignoreComments': true,
+        'ignoreTemplateLiterals': true
+      }
+    ],
+    'no-multi-spaces': 2,
+  },
+};