sbt/sbt-native-packager — pull request #159 by ivanfrain (2014-02-07 15:34:39+00:00)
Title: Add the ability to copy content of directory into the installation directory

I have tried to make a simple fix to allow copying the content of a directory using the mappings setting.
It only works for universal:stage task.

It solves what I described in stackoverflow couple of days ago: http://stackoverflow.com/questions/21551854/add-specific-directory-and-its-content-to-universal-target