removed the CURLOPT_PROGRESSMODE option

PROGRESSMODE is history

pretty big changes when the -# progress bar was moved in here from the
lib/progess.c file, and is now used with the new progress callback function

mode was replaced with callback in the progress struct

progress.mode replaced with progress.callback

removed pgrsMode()

removed lots of #if 0'ed code
removed the "mode" concept
moved all #-stuff to the client

Added pgrsStartNow() on the appropriate place

when failing to write to a socket, we now bail out better
I also use typecasted size_t now for systems with unsigned such ones

removed the last \r\n\r\n bytes
now returns -1 from FormReader() when the last form data has been read!

POST fix

Added #include <string.h>

correct the POST workings. Tim Tassonis reported.

the 7.0.6beta fixes

the -W and -g stuff needn't be here by default

Added a define in the Mingw32 makefiles to allow parts of the config-win32
files depend on that as well. It turned out Borland has no unistd.h file
either, only mingw32 seems to use that.

several minor fixes as pointed out by Bj�rn Stenberg

bad HAVE_STRICMP usage found by Bj�rn Stenberg

added some more text about libcurl using

edited the contributor list
changed ftp-ascii to use-ascii and its explanation was fixed

Added #include <fcntl.h> required by the setmode() for win32

new binary stdout approach for win32 systems

Added GETHOSTBYNAME_R_NARGS and GETHOSTBYADDR_R_NARGS

updated to be more valid for version 7 workings

added a few RFCs to the list