Added Curl_initinfo() that's supposed to init session-specific getinfo-

#include <string.h>

#include <stdarg.h>

CURLcode Curl_getinfo(CURL *curl, CURLINFO info, ...)

/*

 * This is supposed to be called in the beginning of a permform() session

 * and should reset all session-info variables

 */

CURLcode Curl_initinfo(struct UrlData *data)

{

  struct Progress *pro = &data->progress;

  pro->t_nslookup = 0;

  pro->t_connect = 0;

  pro->t_pretransfer = 0;

  pro->httpcode = 0;

  pro->httpversion=0;

  pro->filetime=0;

  return CURLE_OK;

}

CURLcode Curl_getinfo(struct UrlData *data, CURLINFO info, ...)

{

  va_list arg;

  long *param_longp;

  double *param_doublep;

  char **param_charp;

  struct UrlData *data = (struct UrlData *)curl;

  va_start(arg, info);

  switch(info&CURLINFO_TYPEMASK) {