CppUnit - C++ port of JUnit Code

* src/cppunit/TestResultCollector.cpp: fixed memory leak
occuring when calling reset().

* src/cppunit/DllMain.cpp: added work-around for mingw compilation
for BLENDFUNCTION macro issue when including windows.h.

* src/qttestrunner/TestRunnerDlgImpl.cpp: fixed display of multiline
messages.

* include/cppunit/Portability.h: better integration of compiler output
for gcc on Mac OS X with Xcode (contributed by Claus Broch).