run_doxygen: Don't keep output from previous run.

2001-07-11  Phil Edwards  <pme@sources.redhat.com>

	* docs/doxygen/run_doxygen:  Don't keep output from previous run.
	* docs/doxygen/user.cfg.in:  Tweaks.
	* include/bits/c++config:  Documentation comments for Doxygen.
	* include/bits/char_traits.h:  Likewise.
	* include/bits/limits_generic.h:  Likewise.
	* include/bits/std_stdexcept.h:  Likewise.
	* include/bits/stl_pair.h:  Likewise.
	* libsupc++/exception:  Likewise.
	* libsupc++/new:  Likewise.
	* libsupc++/typeinfo:  Likewise.
	* libmath/Makefile.am:  Update and correct copyright.

From-SVN: r43948