Fix CI
Fix CI

To resovle the failures that recently started happening on Travis CI:

- Bring in the most recent updates in atom/ci 
- Adopt the changes seen in https://github.com/atom/wrap-guide/pull/84

Prior to this change, the builds were failing as seen in 
https://travis-ci.org/jasonrudolph/significant-other/builds/554339173.

jasonrudolph/significant-other