* upgraded ngx_lua to 0.9.18rc1 to support Win32 LuaJIT DLL.
* upgraded lua-redis-parser to 0.11rc1 for better Win32 support.
* upgraded lua-rds-parser to 0.06rc2 for better Win32 support.
* upgraded ngx_rds_csv to 0.07rc1 for better Win32 support.
* upgraded lua-resty-cli to 0.04rc1 for better Win32 support.
* upgraded lua-resty-core to 0.1.2.
* applied a patch to LuaJIT to add "!/lualib/" to the default Lua
package search paths.
* upgraded lua-cjson to 2.1.0.3rc2 for better Win32 support and
a suppressed gcc warning.
* use OpenResty's nginx tarballs extracted directly from the official nginx
code repos, because we need the win32 support which is excluded in the
official nginx release tarballs. Our nginx release tarballs are
generated by the util/package-nginx.sh script.
* added the util/package-win32.sh script to generate the Win32 OpenResty
binary distribution file.
* applied a patch to always enable C compiler feature tests in nginx's
own build system because the MinGW gcc compiler on Win32 is also
powerful enough to support advanced features like variadic macros.
* added document README-win32.
* util/dist-check: do a partial uninstallation before installing
anything new.
* added util/build-win32.sh to build OpenResty on Win32 using the
MinGW/MSYS toolchain.
* ./configure: added support for building on Win32 using the MinGW/MSYS
toolchain.
* made ngx.exit() an alias of os.exit().
* made the exit status code right for the wrapper process.
* require at least ngx_lua 0.9.12 to prevent memory bugs in older
versions.
* suppressed a debugging output line.
