pty.js dependency update
upgrade pty version
Merge pull request #4 from azylman/pty-version

upgrade pty version
allow for use of password for connect
upgrade pty version to fix Unsupported fd type: TTY
fix password login
rever pty version
Fix password prompt

Fix issue with password login and make password_prompt settable in options.
fix _self reference error
Merge remote-tracking branch 'br8kpoint/master'

Conflicts:
	lib/sftp.js