warnings like:
  'x' may be used uninitialized in this function.

mode. (djgpp/Watt-32 has 3 ways). Should rewrite this using
"#elif ..", but maybe there is still broken cpp around?

A) Normal non-proxy HTTP:

 - no more "Pragma: no-cache" (this only makes sense to proxies)

B) Non-CONNECT HTTP request over proxy:

 - "Pragma: no-cache" is used (like before)
 - "Proxy-Connection: Keep-alive" (for older style 1.0-proxies)

C) CONNECT HTTP request over proxy:

 - "Host: [name]:[port]"
 - "Proxy-Connection: Keep-alive"

be returned at times when we want to ignore them. Test case 160 fails on Linux,
so I modify the comparison to check for _only_ the error bit set...

debug builds only. Made the ftp code use it on several places.

to survive without it if not found. AIX 4.3 targetted adjustment.

body there is nothing chunked-encoded!

we should make it do that...)

VS2005.

typecast the third argument in the macros to avoid compiler warnings.

.netrc, and when following a Location: the subsequent requests didn't properly
use the auth as found in the netrc file. Added test case 257 to verify my fix.

*/setup.h and */config-win32.h to build fine with VS2005 on x64.

used the default port. He was right. I fixed the problem and added the test
cases 521, 522 and 523 to verify the fix.

libcurl didn't properly send an Expect: 100-continue header. It does now.