Allow .automation for config

Allows `.automation.yml` and `~/.automation/config` to be used for octopolo.

URLs
----

QA Plan
-------
Do the tests pass?  Good.  That probably will do just fine.
Yeah, I don't have a huge opinion one way or the other on the matter, but I can see where are coming from.  To be fair though, this is a pattern that we are using in other places:

Yeah, I don't have a huge opinion one way or the other on the matter, but I can see where are coming from.  To be fair though, this is a pattern that we are using in other repos:

https://github.com/sportngin/queuel/blob/master/lib/queuel.rb

I will keep an eye for a better solution when working on this in the future.