Install medusa on PQM

[John Arbash Meinel]

It seems the FTP tests aren't being run on PQM. I'm not positive about
this, but it seems we have a version skew between FTPServer and what
TestCaseWithMemoryTransport.get_server() expects.

I'm going to try to work out a patch which gets the FTPServer working
again, but after I do, we really should make sure PQM is actually
running all of the tests. (I know there was an earlier problem with not
having paramiko installed).

John
=:->