V0.2: [added] jUnit Test folder structure
V0.2: [updated] added test case for loading json file into memory objects.
[issue]: expected results match pre-condition but 'java.lang.AssertionError' occurred.
V0.2: [updated] added policy for Json to disable HTML escaping. Refactored code, minor changes
V0.2: [updated] added searchToken, only can search top most item for now.
V0.2: [added] StorageException class. General exception class for Storage API.