As I can see a lot of [...]initialize[...]() function name (use of 'z', instead of 's'), (for example in eZScript), I guess eZ uses american naming function

As a result, for a question of normalization, eZsiteAccess::reInitialise() should be renamed to eZsiteAccess::reInitialize()...

Maybe some audit would be needed to check initialise, initialisation are not used

Yes I know, not very important, but as I've seen eZ guidlines are being prepared...

Here is the cost of perfection