Disable lazy loaded nvm

[Marsup]

Hi,

Upgraded to your fork, it's been great so far, kudos for the work !

I'm just having one problem, that is on a new shell, if I run npm directly, or any nodejs file that declares #!/usr/bin/env node in its header, it will fail saying that there's no such file as node.
I'm no shell expert and I'm not sure there's a way out of this, so if this cannot be fixed, is it possible to make this behavior optional ?

Thanks.