store the http code

on how to approach the -# progress bar in the new style transfers...

added lastshow to the progress struct

wide and made the pgrsUpdate() make a final meter update so that the final
values actually are displayed last.

now uses the new progress meter functions

* I hope I finally removed 'empty cookies' crash

function that deals with both directions at the same time.

location: URL turns out to be an "absolute" one and that should be the only
time it is required.

win32 systems

   in the Location: following system that made curl following a location: to a
   different protocol to fail.