A library for web storage
##Use
var storage = new DataStorage({prefix:"baz"}); // set a custom prefix storage.setItem("foo","bar"); storage.getItem("foo"); // "bar" storage.clear({key:"foo"}); // clear only the specified key storage.clear(); // clear all the keys
>```javascript
storage.setItem("foo",null);
storage.getItem("foo"); // null
storage.getItem("foo",{json:false}); // "null"