add support for babel in tests in non-intrusive manner

.babelrc

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-es2015-modules-commonjs"]
+}

package.json

@@ -4,7 +4,7 @@
   "main": "src/index.js",
   "description": "React Native Calendar Components",
   "scripts": {
-    "test": "jasmine src/*.spec.js && npm run lint",
+    "test": "babel-node spec/runner.js && npm run lint",
     "lint": "eslint src/ example/src"
   },
   "repository": {
@@ -24,7 +24,9 @@
     "react-native": "0.44.0"
   },
   "devDependencies": {
+    "babel-cli": "^6.24.1",
     "babel-eslint": "^7.2.3",
+    "babel-plugin-transform-es2015-modules-commonjs": "^6.24.1",
     "eslint": "^3.19.0",
     "eslint-plugin-react": "^7.0.0",
     "jasmine": "^2.5.2",

spec/runner.js

@@ -0,0 +1,6 @@
+import Jasmine from 'jasmine';
+import path from 'path';
+
+var jasmine = new Jasmine();
+jasmine.loadConfigFile(path.resolve(__dirname, 'support', 'jasmine.json'));
+jasmine.execute();

spec/support/jasmine.json

@@ -0,0 +1,8 @@
+{
+  "spec_dir": "src",
+  "spec_files": [
+    "*.spec.js"
+  ],
+  "stopSpecOnExpectationFailure": false,
+  "random": false
+}