0.16

The functions in the thread module have been renamed to remove the
redundant thread in their names. For example, thread::create_thread is
now just thread::create, and so on.

The thread::id function (formerly thread::thread_id), now returns an
Option, to allow it to indicate that the thread has exited, in which case
it no longer has an ID.

Origin now supports linking with code compiled with stack protection features,
such as -fstack-protector.