Update project dependencies, reformat existing code with prettier.

.eslintrc.json

@@ -0,0 +1,30 @@
+{
+  "parser": "babel-eslint",
+  "extends": [
+    "eslint:recommended",
+    "plugin:react/recommended",
+    "plugin:flowtype/recommended"
+  ],
+  "plugins": [
+    "react",
+    "import",
+    "flowtype"
+  ],
+  "rules": {
+    "indent": [
+      "error",
+      2,
+      {
+        "SwitchCase": 1
+      }
+    ],
+    "semi": [
+      "error",
+      "never"
+    ]
+  },
+  "env": {
+    "node": true,
+    "es6": true
+  }
+}

.flowconfig

@@ -22,6 +22,8 @@ node_modules/react-native/flow
 flow/
 
 [options]
+emoji=true
+
 module.system=haste
 
 experimental.strict_type_args=true
@@ -34,11 +36,12 @@ suppress_type=$FlowIssue
 suppress_type=$FlowFixMe
 suppress_type=$FixMe
 
-suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(3[0-6]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)
-suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(3[0-6]\\|1[0-9]\\|[1-2][0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(4[0-2]\\|[1-3][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(4[0-2]\\|[1-3][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+
 suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
+suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
 
 unsafe.enable_getters_and_setters=true
 
 [version]
-^0.36.0
+^0.42.0

index.js

@@ -1,4 +1,4 @@
-// @flow 
+// @flow
 
 export { default as BleManager } from './src/BleManager'
 export { default as Device } from './src/Device'

package.json

@@ -8,15 +8,23 @@
   },
   "scripts": {
     "postinstall": "bash build_ios_frameworks.sh",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "jest"
   },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/Polidea/react-native-ble-plx.git"
   },
   "devDependencies": {
-    "react": "15.4.2",
-    "react-native": "0.40.0"
+    "babel-eslint": "^7.2.3",
+    "eslint": "^3.19.0",
+    "eslint-plugin-flowtype": "^2.33.0",
+    "eslint-plugin-import": "^2.2.0",
+    "eslint-plugin-react": "^7.0.1",
+    "flow-bin": "^0.42.0",
+    "jest": "^20.0.3",
+    "prettier": "^1.3.1",
+    "react": "16.0.0-alpha.6",
+    "react-native": "0.44.0"
   },
   "keywords": [
     "React",