Xtreams depends on FileDirectory in at least three places, all in the
Xtreams-Terminals package. (Three messages on FileUrl, #appending,
#reading, #writing; two tests in XTFileReadingWritingTest >> #setUp
and #tearDown)

Pharo 2.0 has no FileDirectory. So it seems like the easiest (not
necessarily simple, nor right) thing to is to break that out into
Xtreams-Terminals-Squeak and Xtreams-Terminals-Pharo packages, and
similarly for the tests.

After that, we'd need to adjust the ConfigurationOfXtreams. I think I
forgot to fulfil a promise to submit an updated version of this that
loaded FFI correctly (sorry!).

Thoughts? Do any Pharo folk load Xtreams?

frank