Documenting the fact the more_results is unfit for use in datastore.
Merge pull request #287 from dhermes/document-more-results-failure

Documenting the fact the more_results is unfit for use in datastore.
Moving encrypted key to regression subdirectory.
Merge pull request #286 from dhermes/move-encrypted-key

Moving encrypted key to regression subdirectory.
Refactoring duplicate code between storage.key and storage.bucket.