src/cppunit/TestAssert.cpp (assertDoubleEquals): Moved finite & NaN
tests to include/cppunit/portability/FloatingPoint.h. Changed
implementation assertDoubleEquals to explicitly test for NaN
in case of non-finite values to force equality failure in the
presence of NaN. Previous implementation failed on Microsoft
Visual Studio 6 (on this platform: NaN == NaN).
* examples/cppunittest/TestAssertTest.cpp: Add more unit tests to
test the portable floating-point primitive. Added missing
include <limits>.

* include/cppunit/portability/Makefile.am:
* include/cppunit/portability/FloatingPoint.h: Added file. Extracted
isfinite() from TestAssert.cpp.

* include/cppunit/config-evc4:
* include/cppunit/config-msvc6: Added support for _finite().

Conditional inclusion of cmath rather than math.h removed since (1) it
was never used as HAVE_CMATH is never defined, and (2) cmath may move
isfinite() into namespace std.

include/cppunit/ui/text/TextTestRunner.h
* src/cppunit/TextTestRunner.cpp: applied patch #1210013 to remove
hidden virtual function warning.

* include/cppunit/TestResultCollector.h
* 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).