Local storage manager. Provides handy methods to interact with local
storage in a cross-browser compatible way.
By default, the cache manager uses store.js to manipulate items in the
window.localStorage object.
The value of the key which is passed as a
parameter to get/set/add methods is prefixed with <env>:<appId>: string
to avoid clashes with other environments and applications running off the
same domain name and port. You can set environment and application ID in
the configuration file.