Xemacs: better compile keys and error navigation

(global-set-key (kbd "") 'compile)
(global-set-key "\C-c!" 'compile)
(global-set-key (kbd "") 'recompile)
(global-set-key "\C-cc" 'recompile)
(global-set-key (kbd "") 'next-error)
(global-set-key (kbd "") 'previous-error)
(global-set-key (kbd "") 'revert-buffer)