How to disable tk inclusion in py build

[venkatbo at yahoo.com]

Hi Fredrick,

> since _tkinter.so is only built if it's found by the setup script,
> and if built, it's only loaded if you actually use it, why bother
> "disabling" it ?

I don't want it to build tk into the py dist, even if it finds it on
the build box - its not needed in the deployment. Keeping it
out will make the deployed pkg leaner. Don't want end-users
accessing it, since its not meant to be accessed.

Thanks,
/venkat