allow to persist single values or the whole configuration in local storage

[timomayer]

No description provided.

[SheepFromHeaven]

@timomayer so the features which are wanted (?):

• Being able to access the localStorage through the configuration object
• Namespaced values in localStorage

[timomayer]

more like configuration.set(name, value, persist);
if persist is true this value is stored in localStorage and will be merged in the configuration on next page load

[SheepFromHeaven]

@timomayer as separately discussed:

• the getter interface stays as is (get([key]))
• the setter interface should take the following options
  • key [required]
  • value [required]
  • storage [optional, default internalState]
  • cacheTime [optional, default 0]