activate travis again and get builds to pass

[sils]

[Cretezy]

I turned it on and did a test push.

I think we should add more Python versions to the travis, as in pypy3 and the new 3.6

[sils]

Seems we need the access token variable set for the tests to work or change them so that they're mocked properly which might be nice, being able to run them locally.

[sils]

@Cretezy would be nice to see the CI working again, so far I'm testing my changes on my own bot which isn't really conclusive and I'm not really able to write tests for what I do.

[Cretezy]

I'm going to fix the tests today, it's just missing a working RECIPIENT_ID