Travis: Test only on Node v6 (#143)
Travis: Test only on Node v6 (#143)

* Publish Chrome extension only when running Node 6

During the v4.2.0 release, Travis tried to run the release script on
both Node 4 and Node 6, which resulted in a build [failure]. Besides,
Travis should only try to release from one build environment anyway.

[failure]: https://travis-ci.org/OctoLinker/browser-extension/jobs/148600890#L7346

https://docs.travis-ci.com/user/deployment#Examples-of-Conditional-Releases-using-on%3A

* Revert "Publish Chrome extension only when running Node 6"

This reverts commit 5147847d6503fbced775bf011e083a4ee07a6137.

* Travis: Don't test on Node v4

Now that Node v6 is out, there's not really a reason to test on v4,
especially since the published extension isn't running on Node anyway.
Testing only one environment lets us avoid double-deploys, as well.

https://github.com/OctoLinker/browser-extension/pull/143#issuecomment-237141486

josephfrazier/browser-extension,josephfrazier/browser-extension,OctoLinker/browser-extension,OctoLinker/browser-extension,OctoLinker/browser-extension,josephfrazier/browser-extension