import telnetsrv

import telnetsrv in contrib.

because:
- RHEL6/Fedora18 doesn't have a package of telnetsrv.
- telnetsrv 0.4 has some known bugs.
	- ssh problems
	  fixed by telnetsrv commit 051665d79c10cd08c3600a6aa3854835c8c38fbb.
	- socket/thread leaks on forcible disconnect
	  this has not been fixed in the upstream yet.
	  https://github.com/ianepperson/telnetsrvlib/pull/2

this commit imports the following version, which contains fixes of
the above mentioned bugs.
	https://github.com/yamt/telnetsrvlib.git
	commit 365e021479debae45c1d570e0e1c2e9ef0c2a020

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
stop requiring telnetsrv

stop requiring telnetsrv as we now have it in contrib.

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
require paramiko

it's used when cli ssh transport is configured.

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>