Removed define, risc os build, POST-GET bug fixed, AIX 4.3 problems solved

                                  Changelog

Daniel (3 Mar)

- Added share.obj to the VC6 and Borland libcurl makefiles.

- Troels Walsted Hansen found and investigated a problem with libcurl on AIX,

  presumably only on 4.3 or later. gethostbyname_r() is not returning data

  that is possible to "keep" and cache the way libcurl does. But instead these

  versions of AIX uses a gethostbyname() that works thread-safely we can

  instead use the ordinary gethostbyname() and our pack_hostent() approach to

  achieve what we want. The configure script now attempts to detect AIX 4.3 or

  later to adjust for this.

Daniel (2 Mar)

- Juan F. Codagnone found a problem introduced in 7.10.3 when you first did a

  POST and then back to a GET using the same easy handle.

Daniel (28 Feb)

- Removed the strequal and strnequal defines from curl/curl.h header. They

  were never meant for the public header anyway. Philippe Raoult brought it

  up.

- James Bursa fixed the RISC OS build.

Daniel (27 Feb)

- Avery Fay pointed out the very misleading curl_multi_info_read man page, and

  I updated it to become more accurate.