Simplified version had been implemented in AngularJS at http://plnkr.co/edit/HqcNSxuw6JLqPPi50lmJ
Using redux seems to be an overkill for this little app, but provides some learning ground to redux ideas such as combined reducers, component containers, async dispatch. The routing is also not really needed. Kept it to preserve generated app structure. Added a couple of simple tests to helper file. TODO: fix test runner.
Mikey Generated Project (see http://npm.taobao.org/package/mikey)
Run npm install to generate necessary node_modules
Run npm start and open localhost:8080 in your browser.