Fix: babel runtime (#1)

* Chore: remove babel-runtime and update to babel 7

* Chore: update dependencies, npm to yarn and husky prepush hook

* Test: lib to src

.babelrc

@@ -1,6 +1,5 @@
 {
   "presets": [
-    "env"
-  ],
-  "plugins": ["transform-runtime"]
+    "@babel/env"
+  ]
 }

package.json

@@ -8,11 +8,12 @@
   "license": "MIT",
   "private": false,
   "scripts": {
-    "pretest": "npm run build && npm run lint",
+    "pretest": "yarn run build && yarn run lint",
     "lint": "eslint src",
     "test": "jest --coverage",
     "build": "babel src --out-dir lib",
-    "prepublish": "npm run build"
+    "prepush": "yarn run test",
+    "prepare": "yarn run build"
   },
   "keywords": [
     "string",
@@ -33,12 +34,16 @@
     ]
   },
   "devDependencies": {
-    "babel-cli": "^6.26.0",
-    "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.6.1",
-    "eslint": "^4.19.1",
-    "eslint-config-airbnb-base": "^12.1.0",
-    "eslint-plugin-import": "^2.9.0",
-    "jest": "^22.4.3"
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "babel-core": "^7.0.0-0",
+    "babel-jest": "^23.4.2",
+    "eslint": "^5.5.0",
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-plugin-import": "^2.14.0",
+    "husky": "^0.14.3",
+    "jest": "^23.5.0",
+    "regenerator-runtime": "^0.12.1"
   }
 }

test/index.spec.js

@@ -1,4 +1,4 @@
-import converter, { convertStringToNumber } from '../lib';
+import converter, { convertStringToNumber } from '../src';
 
 test('default export | convert string "2" to integer 2', () => {
   const input = '2';