Update to 2013.02.02:

* Noteworthy changes in release 2013.02.02 (2013-02-02) [stable]

  Support for AIX has been improved in AX_PTHREAD. Further details are
  available at <http://savannah.gnu.org/patch/index.php?7911>.

  AX_BOOST_FILESYSTEM has been improved to work more reliable on non-GNU
  systems. See <http://savannah.gnu.org/patch/?7921> for further details.

  The new macro AX_LIB_EV has been added, which checks for libev in a
  pkg-config-like manner. The purpose of the macro is to unifty behaviour
  between distros that come with libev.pc and systems (e.g. upstream) that
  don't. Further details are at <http://savannah.gnu.org/patch/?7938>.

  The portability of AX_PYTHON has been improved. Also, the macro now
  recognizes more recent versions of the Python interpreter, too. See
  <http://savannah.gnu.org/patch/?7897> for further details.

  Support for cross-compilation in AX_PROG_CC_FOR_BUILD has been improved.
  See <http://savannah.gnu.org/patch/index.php?7890> for further details.

  The new macro AX_PROG_CXX_FOR_BUILD has been added. Further details are
  available at <http://savannah.gnu.org/patch/?7891>.

  Mac OS X support in AX_OPENMP has been improved. Further details are
  available at <http://savannah.gnu.org/patch/?7893>.
Updated devel/autoconf-archive to 2013.02.02
Update HOMEPAGE and remove commented-out sf MASTER_SITE.
From Bug Hunting.
Remove obsolete patches.

Noticed by Jan Beich.
These patches are not used or already fixed in another way.
Use COMPILER_RPATH_FLAG instead of -Wl,-rpath.
Use system vsnprintf() as intended (fixes build on OS X 10.6).
Whoops, rerun "make mps" after adding patch comments.