API v2 Support

[doertedev]

Ohai. I started to rewrite this piece of software to use DO's v2 API by switching from the digitalocean gem to droplet_kit. But I'm having a hard time with this, so guess we'll need a bit of discussion here.

https://github.com/doertedev/lita-digitalocean/tree/api_v2

a) rewrite, completely from scratch
b) another testing approach, same codebase for the library
c) same codebase, tests cleaned up a bit (would need more brains on this).

Discuss plx.

[doertedev]

On a completely different note: Since popping up/down and especially converging / provisioning them can take a lot of time the whole thing can be made a bit more.... interactive.
I don't want the bot to ask me 40 different questions throughout the creation/deletion of the droplet, but event-driven feedback on the status of the actual action being performed can make the thing a bit more useful I think.