twitter/commons — pull request #65 by benjyw (2012-08-20 23:39:50+00:00)
Title: No need to copy classfiles around in ScalaCompile.

The genfile mechanism already handles multiple output dirs perfectly fine.
So all this does is handle the classpath correctly. That copying can add
minutes to a large build, and again when cleaning the extra files.

Also fixes a tiny nit in jar_create, for consistency with subsequent lines.