MONDRIAN: Disable CompatabilityTest.testNullCollation on Derby - because Derby doesn't support the SQL necessary to run the test.
MONDRIAN: Disable CompatabilityTest.testNullCollation on Derby - because Derby doesn't support the SQL necessary to run the test.

[git-p4: depot-paths = "//open/mondrian/": change = 7945]

inevo/mondrian,inevo/mondrian