[2.0] DDC-112 - Enhance debugging capabilities in OrmFunctionalTestCase by logging all SQL queries and enrichting all test failures with them (PHPUnit 3.4 only feature).

[2.0] More preparations to fix character casing issue. Reverted and completed ConditionalPrimary parsing and added more tests for this.

[2.0] Introduced SQL logging facilities. Made Type constructor private to prevent instantiation and force use of the factory method getType().