After https://github.com/hedgedoc/hedgedoc/pull/969 was merged,
a separate configuration file for the sequelize-cli is no longer
required.
Signed-off-by: David Mehren <git@herrmehren.de>
this removes the general `postinstall` call to `bin/heroku` and instead
puts it into a heroku-prebuild hook. At the same time, env vars get
updated to use the `CMD` prefix. The configured buildpacks were not used.
Finally, npm run build is now automatically
done by Heroku.
Signed-off-by: Claudius <opensource@amenthes.de>
