go.crypto/ssh update

[remydb]

A few days ago the SSH package got updated, which broke this package.
See: https://groups.google.com/forum/#!msg/Golang-nuts/AoVxQ4bB5XQ/i8kpMxdbVlEJ

As mentioned in that thread, it can still be used using the legacy SSH package, though the imports will need to be changed for this package then.

[nemith]

Fun. Well i did think that the SSH package left a lot of wanting, so hopefully the new one is better.

I will look into what changes we need to do to make go-netconf work with new ssh package. If the effort is too large we'll just change the imports (or maybe we should do that now)

[nemith]

@remydb Thanks for the report. Try the lastest master
48fcd14 as it should work now with the updated ssh package.