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 debug option actually just enables symbols.

Change-Id: Ib7e3c7727e2160b04dea6c56303e4a58d3e0cd2b
Reviewed-on: https://gerrit.libreoffice.org/19212
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

Nearly all compilers that are in use will support these features. ALso
mention that c++11/c++14 features are only allowed in optional code.

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