Fix supernode memory leak on exit path

src/edge_utils.c

@@ -2994,6 +2994,7 @@ void edge_term (n2n_edge_t * eee) {
 
     clear_peer_list(&eee->pending_peers);
     clear_peer_list(&eee->known_peers);
+    clear_peer_list(&eee->conf.supernodes);
 
     eee->transop.deinit(&eee->transop);
     eee->transop_lzo.deinit(&eee->transop_lzo);

src/n2n.c

@@ -653,6 +653,9 @@ size_t clear_peer_list (struct peer_info ** peer_list) {
     size_t retval = 0;
 
     HASH_ITER(hh, *peer_list, scan, tmp) {
+        if (scan->purgeable == SN_UNPURGEABLE && scan->ip_addr) {
+            free(scan->ip_addr);
+        }
         HASH_DEL(*peer_list, scan);
         mgmt_event_post(N2N_EVENT_PEER,N2N_EVENT_PEER_CLEAR,scan);
         /* FIXME: generates events for more than just p2p */