[MERGE] Support for Putty SSH implementation

[Dmitry Vasiliev]

Alexander Belchenko wrote:
> Dmitry Vasiliev пишет:
>> My code was based on SSHCorpSubprocessVendor and unfortunately there are
>> different semantics for '-s' option. I'll update the patch and add tests
>> for this case along with the fixes proposed by Andrew.
> 
> No, this change does not helps. I have the same error anyway.

Hmm, strange... If 'plink -x -a -ssh -2 -l bialix -s aaronbentley.com sftp' 
from the command line doesn't give you any errors then the problem can belongs 
to the wrapping code which I didn't touch. Anyway I'll dig into it in a few days.

-- 
Dmitry Vasiliev (dima at hlabs.spb.ru)
     http://hlabs.spb.ru