moved the url.c prototypes to here

lib/url.h

@@ -23,6 +23,18 @@
  * $Id$
  *****************************************************************************/
 
-/* empty */
+/*
+ * Prototypes for library-wide functions provided by url.c
+ */
+
+CURLcode Curl_open(struct UrlData **curl);
+CURLcode Curl_setopt(struct UrlData *data, CURLoption option, ...);
+CURLcode Curl_close(struct UrlData *data); /* the opposite of curl_open() */
+CURLcode Curl_connect(struct UrlData *,
+                      struct connectdata **,
+                      bool allow_port);
+CURLcode Curl_do(struct connectdata *);
+CURLcode Curl_done(struct connectdata *);
+CURLcode Curl_disconnect(struct connectdata *);
 
 #endif