Last two days' changes, loadsa

Georg Horn's updates, this is _also_ called 1.1.3 ! ;-)

Added curl-config.1

brand new command, brand new docs!

Added contributors

configure sets variables that curl-config uses to display what features
that have been built-in

Remade resume stuff to keep data in the connectdata struct instead of the
main handle struct to work with persistant connections

Cris Bailiff's and Georg Horn's big improvements

init the speed index variable between transfers

Frederic Lepied's ftp download resume fix

more intial fixes

Added curl-config as a script that now gets installed

libcurl version, not curl version

Generates curl-config now

tiny tool for outputting curl config variables

use GMT for the conditional timed gets (reported by Phil Karn)

Added text about curl.haxx.se not being a good test target for people's
libcurl experiments...

we must fix SSL when IPv6 is enabled, since we can still connect to ipv4
sites and then SSL works perfectly

calling curl_easy_perform() with no URL set, now returns an error as
early as possible

we don't use the HTTP_PROXY environment variable in uppercase anymore, since
it might become a security problem (Bugs item #415391)

now it works

minor updates, still crashes

added Linux hints

oops, missed the shut-off non-blocking fix

interfaces, windows non-blocking connect, progress meter fix and more