Log Message:
Update ruby-net-ssh to 2.6.5.

=== 2.6.5 / 06 Feb 2013

* Fixed path in gemspec [thanks priteau]

=== 2.6.4 / 06 Feb 2013

* Added license info to gemspec [jordimassaguerpla]
* Added public cert. All gem releases are now signed.

=== 2.6.3 / 10 Jan 2013

* Small doc fix and correct error class for PKey::EC key type [Andreas Wolff]
* Improve test dependencies [Kenichi Kamiya]