* Enable clearing and retrieving all values from local storage
I didn't add these methods to the base abstract class because we don't currently have a use case for them. If we develop one, we can just lift it up.
* Use new browser local storage methods for reseed task
* Remove the now dangerous methods enabling usage of `chrome.storage`
Any direct reference to chrome storage needs to handle serialization tags, which is best dealt with through the classes implementing `AbstractChromeStorageService`
Matt Gibson