-- thc_ipc_send ==> thc_ipc_send_request
    -- thc_ipc_recv ==> thc_ipc_recv_response
    -- thc_ipc_recv_response ignores requests and messages that
       are neither requests or responses (i.e., it only handles
       responses). See updated header documentation.
    -- awe_mapper_create_id and awe_mapper_get_id no longer
       BUG on error conditions; they return a non-zero exit status
       instead.
    -- THCYieldToId and THCYieldToIdAndSave return non-zero if
       the id does not match an awe.

Not built or tested yet. Updated examples. (In the context switch
example, I just BUG on in there, so you have the same semantics
as before.)