Heroku Deployment Woes

[josevalim]

@baroldgene

I’m not actually running any CI, just deploying. I could try taking it out of the pipeline, but I don’t know how that would fix the issue. Just seems like Heroku is running the app under the wrong elixir version.

Yup, see here: Ecto migration fails on Heroku - #6 by lukerandall

We have also updated the buildpack to use v1.5.3 by default in master.