User list hostnames text color change

Allow the text in the user list hostname column to be changed

src/fe-gtk/userlistgui.c

@@ -539,7 +539,7 @@ userlist_add_columns (GtkTreeView * treeview)
 		gtk_cell_renderer_text_set_fixed_height_from_font (GTK_CELL_RENDERER_TEXT (renderer), 1);
 		gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 																	-1, NULL, renderer,
-																	"text", 2, NULL);
+														"text", 2, "foreground-gdk", 4, NULL);
 	}
 }