Compatibility with `term` *0.2.9*

Compatibility with `term` *0.2.9*

When attempting to compile cargo with the latest `term` crate,
one would face compilation issues due to an attempt to declare
a `Terminal` type without its apparently new associated type
called `Output`.

The fix involves the removal of the `UghWHyIsThisNecessary` type,
and declares the `Terminal` type as
`Terminal<Output=Box<Write + Send>>`.