Changes for version 3.71 - 2010-12-30
- the numerical result value passed to callbacks did not stringify correctly, due to internal reuse and failure to reset the sv flags.
- actually test for posix_[mf]advise, as at least uClibc defines _POSIX_ADVISORY_INFO without actually having any of the required funcitonality. ugh.
- IO::AIO - Asynchronous Input/Output