Still another question : I've just build my game with only one change : I selected the provisioning profile "production" instead of "adhoc" inside XDK build settings tab.
However, I didn't change the provisioning file I used. And the build succeeded!
So in other words, I've been able to build both adhoc and production provisionning profiles with the same file, which is an adhoc file (see image below)
Could this build be considered a production build, as Intel XDK succeeded to make it, or is it mandatory to use a production provisioning file?