Switched to Jest testing framework.

Made tests pass again. Created entries.spec.js + made it pass.
Added wallaby.config.js to support wallaby.js runner.

package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "start": "webpack-dev-server --config webpack.dev.js",
-    "test": "NODE_ENV=test mocha --recursive --compilers js:babel-register --require ./test/setup.js",
+    "test": "NODE_ENV=test jest",
     "test:watch": "npm test -- --watch",
     "build": "webpack --config webpack.config.js",
     "storybook": "start-storybook -p 9001",
@@ -39,7 +39,6 @@
     "babel-plugin-transform-object-rest-spread": "^6.5.0",
     "babel-preset-es2015": "^6.5.0",
     "babel-preset-react": "^6.5.0",
-    "babel-register": "^6.5.2",
     "babel-runtime": "^6.5.0",
     "css-loader": "^0.23.1",
     "eslint": "^3.5.0",
@@ -49,9 +48,9 @@
     "file-loader": "^0.8.5",
     "immutable": "^3.7.6",
     "imports-loader": "^0.6.5",
+    "jest-cli": "^15.1.1",
     "js-yaml": "^3.5.3",
     "lint-staged": "^3.0.2",
-    "mocha": "^2.4.5",
     "moment": "^2.11.2",
     "node-sass": "^3.10.0",
     "normalizr": "^2.0.0",