Remove SSH code from the API

[aszlig]

This really shouldn't belong to the API, so let's move it to the hetznerctl tool entirely.

Scheduled for 1.0.0, because this is a backwards-incompatible change.

[dangra]

I am a user of observed_active/deactive(), what is wrong with providing such functionality as a library?

[aszlig]

Ah, sorry, wanted to change the description of this issue. Didn't remember the exact implementation of them while writing this issue. So no, those methods won't be removed, sorry for the confusion.

I'm however thinking about a new API architecture for 1.0.0, so the implementation of these methods will probably change.

[adrianog]

Maybe this warning can be removed then:
The RescueSystem.shell() method will be removed from the API in version 1.0.0, please do not use it! See https://github.com/aszlig/hetzner/issues/13 for details.

[aszlig]

@adrianog: Mhm, good point. What I had in mind back then was to move the function to another location. So maybe it's a good idea to move it already and change the warning to point to the new location.