Use std::auto_ptr in C++03 mode.

These features will switch the used C++ version from C++03 to C++11. We
are also going to use std::unique_ptr instead of std::auto_ptr for the
c++11 mode.

The code has been commented out for a long time and is not related to a
missing fix.

Now we support the following new macros:

- CPPUNIT_ASSERT_LESS
- CPPUNIT_ASSERT_GREATER
- CPPUNIT_ASSERT_LESSEQUAL
- CPPUNIT_ASSERT_GREATEREQUAL

that might help clang scan-build understand that execution won't continue after
they fail

"'CppUnit::TextTestResult::addFailure' hides overloaded virtual function;
../../include/cppunit/TestResult.h:85:16: note: hidden overloaded virtual
function 'CppUnit::TestResult::addFailure' declared here: different number of
parameters (2 vs 1)." (Clang)

This patch allows to compile the code with gcc's -Weffc++

It consists mostly of making copy constructors and assignment operators
explicit and private, and of initializing all members in initializer lists.

Change-Id: I6f1cae812c58e3791c2386a1288501cf2f559610
Reviewed-on: https://gerrit.libreoffice.org/5424
Reviewed-by: Tor Lillqvist <tml@iki.fi>
Tested-by: Tor Lillqvist <tml@iki.fi>

Conflicts:
	.gitignore
	autogen.sh
	configure.in
	doc/Makefile.am
	examples/cppunittest/TestAssertTest.cpp