AUTHOR WEBSITE: http://ydr.me/
客户端本地存储，包括localStorage 或 sessionStorage
IT IS A spm package.
#USAGE
var $ = require('jquery');
require('jquery.storage')($);
// 1. options
$.storage(options);
// 2. get
$.storage().get();
$.storage().get("a");
$.storage().get(["a","b"]);
// 3. set
$.storage().set("a","11");
$.storage().set({"a":"111","b":"222"});
// 4. remove
$.storage().remove("a");
$.storage().remove(["a", "b"]);
// 5. clear
$.storage().clear();
// 6. bind unbind
$.storage().bind("a", fn);
$.storage().unbind("a", fn);
#DEFAULTS
$.storage.defaults = {
// 默认为 localStorage，可选 session为sessionStorage
type: 'local'
};