Added struct fields to deal with time-of-document

lib/urldata.h

@@ -250,6 +250,8 @@ struct Progress {
   double t_connect;
   double t_pretransfer;
   int httpcode;
+  time_t filetime; /* If requested, this is might get set. It may be 0 if
+                      the time was unretrievable */
 
 #define CURR_TIME 5
 
@@ -287,6 +289,7 @@ struct FTP {
 };
 
 struct Configbits {
+  bool get_filetime;
   bool tunnel_thru_httpproxy;
   bool ftp_append;
   bool ftp_ascii;