Fix a regression in ParamikoSSHClient.run method.

Change SSHClient interface a bit and make "put" method return a full path to the
location where a file has been saved.

Remove old invalid test and add a new one.

Part of LIBCLOUD-278.


git-svn-id: https://svn.apache.org/repos/asf/libcloud/trunk@1454788 13f79535-47bb-0310-9956-ffa450edef68