CppUnit - C++ port of JUnit Code

Add tests of the precision generated by
assertion_traits<double>::toString().

* examples/cppunittest/TestAssertTest.cpp:
* examples/cppunittest/TestAssertTest.h: Remove declaration of
unimplemented functions testAssertDoubleNotEquals1 and
testAssertDoubleNotEquals2. Factor new method
testAssertDoubleNonFinite out of existing testAssertDoubleEquals.

Apply patch to fix [ 1293903 ] UNICODE Builds not supported

Note that CPPUNIT_ASSERT_DOUBLES_EQUAL handles non-finite numbers.

Make sure that CPPUNIT_ASSERT_DOUBLES_EQUAL() properly handles
non-finite values.

Add unit tests for CPPUNIT_ASSERT_DOUBLES_EQUAL() that test with
non-finite values.

Account for non-finite values in assertDoubleEquals().

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.

Check for isfinite() and finite().

New autoconf macro to test for isfinite() in C++ mode.

Update email address of Steve M. Robbins