CppUnit - C++ port of JUnit

This adds SubunitTestProgressListener, which allows outputting test
progress via subunit (https://launchpad.net/subunit). Iwrote this ages ago
and just realised I hadn't submitted it upstream.
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To use the patch, apply it and rebuild your cppunit. Then in your main do
{
// Create the event manager and test controller
CPPUNIT_NS::TestResult controller;

// Add a listener that collects test result
// so we can get the overall status.
// note this isn't needed for subunit...
CPPUNIT_NS::TestResultCollector result;
controller.addListener( &result );

// Add a listener that prints test activity in subunit format.
CPPUNIT_NS::SubunitTestProgressListener progress;
controller.addListener( &progress );

// Add the top suite to the test runner
CPPUNIT_NS::TestRunner runner;
runner.addTest( CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest()
);
runner.run( controller );

return result.wasSuccessful() ? 0 : 1;
}
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