Add legacy aliases for the recently-removed SSH key properties.
Review Request #10538 — Created April 17, 2019 and submitted
We have some unit tests outside of Review Board that make use of the old
key2_b64SSH keys in
These broke with the migration of these keys to the newer SSH key
support for unit tests, and that code needs to work with older and newer
versions of Review Board.
This change adds legacy properties that forward on to the new keys,
Unit tests pass in Review Board and our in-house tests.