GRADLE-800 - Fix test execution problem when test classpath contains a version of Ant < 1.7.0 - Use the working directory specified by the test options for test processes. - Better handling of internal exceptions in test process.
GRADLE-800 - Changed test execution so that Gradle has responsibility for forking test processes. - Temporarily ignore test options. - Switched on TestListeners for TestNG tests. - Gradle classes and classes under test are now isolated from each other in the forked test process. - Fixed a deadlock when worker process fails before it connects to the server, and after the server has started sending messages to the worker process.