Partial fix for #11. Correctly calls connection handler on timeout now,

but doesn't yet set the error.

src/common.h

@@ -153,6 +153,7 @@ struct _xmpp_conn_t {
     xmpp_conn_type_t type;
 
     xmpp_conn_state_t state;
+    uint64_t timeout_stamp;
     int error;
     xmpp_stream_error_t *stream_error;
     sock_t sock;
@@ -184,6 +185,9 @@ struct _xmpp_conn_t {
     int depth;
     xmpp_stanza_t *stanza;
 
+    /* timeouts */
+    unsigned int connect_timeout;
+
     /* event handlers */    
 
     /* stream open handler */