removed zlib dependence from default target; added new zlib targets.

removed obsolete NetWare config files;
we generate now config.h dynamically from Makefile.

added ifdef for NetWare to ares.h.

ifdef keep_sigact since its only used when SIGALRM is defined.

fixed ares linking.

file:// upload fix on windows

Andres Garcia pointed out that we searched for a slash badly since it is
converted and thus we must search for backslash on windows

clarify the -Q option a bit better

mingw and netware makefiles added by Gunter Knauf

fixed Win32 prebuild section; fixed minor cosmetic bug.

added vc-ssl-zlib target.

minor cleanup.

be a bit more verbose when things go wrong.

added additional check to avoid calling a non-existant external script.

the simple way was too simple, so added --mktarball option.

minor cosmetic fix.

added simple way to create a tarball just before the build is deleted.

changed to reflect recent NetWare makefile changes;
moved call to buildconf.bat down so that it takes place in the build dir.

added MingW32 makefile.

changed to use Makefile.inc; made paths overwritable.

added comment.

Added README.netware to the release archive

added line where to find compile instructions.

minor NetWare upate.

try to relax linux build host detection.