IA64 and PA machines.

The ctypes unittests work fine on the IA64, but dump core in
test_qsort on the PA.

Fixed: #2914 (RFE for UTC support in TimedRotatingFileHandler) and #2929 (wrong filename used to delete old log files).

Patch by Graham Horler.

(http://bugs.python.org/issue2882)

  that function actually tests something on OSX).

- Add documentation to platform.mac_ver that explains why the middle element
  of the return value will not contain useful information.

getproxies_macosx_sysconf uses ctypes to call SystemConfiguration APIs. This
checkin adds ctypes annotation to specify the right argument types for the
API's that are used.

This is needed to be able to use urllib on a 64-bit system, without
annotations you'd get a hard crash.