XenoEmacs has been updated to include the avy navigation package and to enable relative line numbers by default, the hotkey to jump between rows relative to currently selected one remains C-u + linum + up || down while avy-goto-line was mapped to C-'. Comment out the (setq display-line-numbers-type 'relative) line in emacs.d/custom/general-conf.el to restore the line numbering to its previous setting.
Relative line numbers + avy
On a sidenote, the autocomplete package for PHP, ac-php, seems to have an incompatibility
error with one of its included dependencies called phpctags. To fix
this, simply build the latest version of phpctags and move the resulting phpctags.php file to the ac-php folder in the .emacs.d/elpa directory.