Update bookmark list also on any line changes in the document

In addition to updating the bookmark list on document notebook tab change
and adding/removing line markers, also rebuild the bookmark list
when the text in the document changes with lines added or deleted.

Should fix SF bugs geany#129 and geany#39.

addons/src/ao_bookmarklist.c

@@ -464,16 +464,23 @@ void ao_bookmark_list_update_marker(AoBookmarkList *bm, GeanyEditor *editor, SCN
 {
 	AoBookmarkListPrivate *priv = AO_BOOKMARK_LIST_GET_PRIVATE(bm);
 
-	if (priv->enable_bookmarklist &&
-		nt->nmhdr.code == SCN_MODIFIED && nt->modificationType == SC_MOD_CHANGEMARKER)
+	if (priv->enable_bookmarklist && nt->nmhdr.code == SCN_MODIFIED)
 	{
-		if (sci_is_marker_set_at_line(editor->sci, nt->line, 1))
+		if (nt->modificationType == SC_MOD_CHANGEMARKER)
 		{
-			add_line(bm, editor->sci, nt->line);
+			if (sci_is_marker_set_at_line(editor->sci, nt->line, 1))
+			{
+				add_line(bm, editor->sci, nt->line);
+			}
+			else
+			{
+				delete_line(bm, nt->line);
+			}
 		}
-		else
+		else if (nt->linesAdded != 0)
 		{
-			delete_line(bm, nt->line);
+			/* if any lines changed, refresh the whole list as we refer line numbers */
+			ao_bookmark_list_update(bm, editor->document);
 		}
 	}
 }