Allow project to be in a sub-dir

[jamesward]

See:
https://groups.google.com/d/msg/play-framework/f-V_bIYAwYw/5CI520WqSDEJ

[anfuerer]

+1 for a fix

[GeeF]

+1

[emilesilvis]

Yes please.

[ploddi]

Multiproject repos as well.
Is there same way to configure sbt at build phase like Procfile for execution?

[the21st]

+1

[jkutner]

This is currently supported with the sbt-heroku plugin.

For git deployment, we recommend that the sub-dir subproject be a git submodule, which can be deployed independently as a workaround. That is, until we come up with a better general purpose solution for the buildpack.