ipaObject is defined as an auxiliary objectclass so it is up to the
plugin author to ensure that the objectclass is included an a UUID generated.
ipaUniqueId is a MUST attribute so if you include the objectclass you must
ensure that the uuid is generated.
This also fixes up some unrelated unit test failures.
Tied the make-test script into the test target of the top-level Makefile
Added code to xmlrpc_test.py so that it configures the API if it isn't
already done which enables individual tests to be executed.