GUACAMOLE-637: Simplify SFTP path normalization logic. Correct behavior to match documentation.
GUACAMOLE-637: Simplify SFTP path normalization logic. Correct behavior to match documentation.

glyptodon/guacamole-server,mike-jumper/incubator-guacamole-server,glyptodon/guacamole-server,mike-jumper/incubator-guacamole-server,glyptodon/guacamole-server,mike-jumper/incubator-guacamole-server,apache/guacamole-server,apache/guacamole-server,mike-jumper/incubator-guacamole-server,apache/guacamole-server