Currently the old encrypted keys may not match the path component
encoding. Change the iterator such that the prefixes handle arbitrary
byte sequences.
Change-Id: I0a50049f4ef9887e1c4df6f9692f967a054430eb
IterateObjectsAllVersionsWithStatus
We need different implementation for IterateObjectsAllVersions because
we want to iterate over all object without specifying object status.
Existing method will have new name but implementation details are not
changed.
Change-Id: I01b987996772fa7f8fd73da9910d52db2d1aa0d7
