Fixing proc start command
Revert "Fixing proc start command"

This reverts commit ff721cb81cc0cb62e32bfd44df46bef7282f487b.
Trying a different sbt plugin version to get app started on heroku
Revert "Trying a different sbt plugin version to get app started on heroku"

This reverts commit 9e0eb0d88e86392533eae0c2aa928caad4769ff6.