Mad coll

Work done to implement "UW Universal Workflow" functionality.
> I see, so fluka_to_id() and fluka() are just functional forms of the direct call to the map.

Well it isn't *just* a functional form. The functions also validate that the input is correct. 

> My only concern about fluka() as opposed to id_to_fluka() is that we have a function in the Material class with the identical signature, and a very different purpose.

> This could be confusing to people. 

They live in different namespaces.  The ones coming from nucname should be very easy to identify since they would follow a well-known pattern.  Also I believe that there is both a nucname.mcnp() function as well as a Material.mcnp() method. So there is some precedence for the pattern already.