These originated in the "api" package but the REST/SSH tests are a better fit for the "rest"/"ssh" packages. Similarly, move the abstract test class to a common place where we don't have to @Ignore it. Arguably, the SSH tests belong in a separate ssh.change subpackage, but that doesn't currently exist. Change-Id: I2feae1edc020c527d089c4d8679d32b85c76744a