Add a DaybedStorage PoC

Lots of things to change before it works:

 - [ ] Add daybed.js and hawk.js to vendors
 - [x] DaybedStorage is promise aware, I don't know how to get it integrated with react and getInitialState.

Hope @n1k0 can help me on this.
Makes me think we'll have to update the localStorage store to be async & promise-compliant as well, if we want to keep backend-agnostic :/