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.

"remaining: [time]" outputs to hint users about what to expect

#1187787 points out.

added (somewhat ugly) typecasts to build warning-free on 64bit platforms (the
result of a (char *) - (char *) cannot be stored in an int universally)

Previously this was only done for OpenSSL builds.

given prefix. Building something with gnutls without it just is too error-
prone.

build...