[Proj] Conversion to UTM

[Mathias bavay]

Hi!

I am wondering: why is the UTM zone not computed by cs2cs when 
converting coordinates to utm? Is it because a specific algorithm would 
have to be implemented for each projection?

Mathias
PS: I am working on a qt GUI for cs2cs. I should be able to release its 
first version soon! (my goal is to make something useful, convenient and 
that casual users can use without making obvious mistakes)