Upgrade Jest and Babel dependencies (#227)

* Upgrade jest and babel packages

* Fix jest configuration deprecation

* Fix babel configuration to reflect package changes

* Use yarn (instead of npm) for script commands

* Silence custom errors to avoid creating verbose logs during tests

* Update node version for CI

* Revert "Use yarn (instead of npm) for script commands"

This reverts commit b164e2e.

* Revert "Silence custom errors to avoid creating verbose logs during tests"

This reverts commit 340d524.

Author: skovy

.babelrc

@@ -1,4 +1,4 @@
 {
-  "presets": ["es2015"],
-  "plugins": ["transform-object-rest-spread"]
+  "presets": ["@babel/preset-env"],
+  "plugins": ["@babel/plugin-proposal-object-rest-spread"]
 }

package.json

@@ -24,20 +24,21 @@
       "baseDir": "../"
     },
     "testEnvironment": "node",
-    "testPathDirs": [
+    "roots": [
       "transforms",
       "bin"
     ]
   },
   "devDependencies": {
+    "@babel/core": "^7.5.4",
+    "@babel/plugin-proposal-object-rest-spread": "^7.5.4",
+    "@babel/preset-env": "^7.5.4",
     "babel-eslint": "^6.0.5",
-    "babel-jest": "^15.0.0",
-    "babel-plugin-transform-object-rest-spread": "^6.6.5",
-    "babel-preset-es2015": "^6.6.0",
+    "babel-jest": "^24.8.0",
     "eslint": "^2.13.1",
     "eslint-plugin-react": "^5.2.2",
     "fbjs-scripts": "^0.7.1",
-    "jest": "^17.0.3"
+    "jest": "^24.8.0"
   },
   "bin": {
     "react-codemod": "./bin/react-codemod.js"