Make Blowfish support work. Crypt::Blowfish encryption seems to be
incompatible with the blowfish in ssh. Tried swapping bytes as per
the openssh source, but that didn't fix it, either.

Is there any way to use Rhosts-RSA auth without running as root?

Add option for setting RSA identity files.

Add more tests to the test suite.

Try grabbing configuration info from user and system config files.
