libssh patch

[Ruben Garcia Azuara <rubenga@xxxxxx>]

Hello,

   I am trying delivering a new patch, but I had never used git.

   The first patch include a fix bug to ignore case in HOST parameter.

   The second patch add new features: Supports StrictHostKeyChecking and UserKnownHostsFile config parameters.

   Sorry if I make some mistakes, and, please, you tell me how could solve them.

Regards.