the configure script. We set it differently now and generate the
lib/ca-bundle.h file entirely.

   CURLOPT_SSL_CTX_FUNCTION to set a callback that gets called with the
   OpenSSL's ssl_ctx pointer passed in and allow a callback to act on it. If
   anything but CURLE_OK is returned, that will also be returned by libcurl
   all the way back. If this function changes the CURLOPT_URL, libcurl will
   detect this and instead go use the new URL.

   CURLOPT_SSL_CTX_DATA is a pointer you set to get passed to the callback set
   with CURLOPT_SSL_CTX_FUNCTION.

Added code to deal with white spaces in relocation headers.

booleans

authenticated our connection, we can continue without any Authorization:
headers as long as our connection is maintained.

a "plain" Negotiate as well.

as otherwise we can re-send requests on the same connection nicely

but the infrastructure is there.

to add more method in the future.

added.

funky logic in order to make re-tries work fine with OpenSSL. This corrects
the problem David Orrell noticed.