FIX: Another fix for remote command execution.

This was a regression introduced by the switch to Phar; our SSH command execution wasn't binary-safe because the SSH command flags didn't take into account outputStream.
Removed cruft from original version of self-extracting archive.

This code is commented-out rather than removed entirely because the commented-out function hans't actually been implemented yet.  Right now, to self extract an archive you would need to pass the archive as an argument to 'load' or 'install', which is a little counter-intuitive.