mozilla/rust — pull request #11910 by JeremyLetang (2014-01-29 18:26:45+00:00)
Title: Move concurrent stuff from lib extra on a separate package

Just some work for #8784.

Move extra::arc, extra::sync, extra::future, extra::task_pool and extra::comm in libconcurrency.

maybe the name lib concurrency is not really good, but i can change this.