[O] org-velocity load problem

[d . tchin]

Hi all,

This post just to warn that org-velocity is not loaded with Emacs 22.3.1.

I try to load org-velocity but I have the following message :
error: Unknown keyword :safe

I use GNU Emacs 22.3.1 (i386-mingw-nt6.1.7601) and Org-mode version 7.7.

I had the possibility to try with emacs 23.3 with the same org-mode version 
and it is loaded correctly.

After investigation, it seems related to custom.el file. Indeed the keyword is 
defined in the later version of emacs.