This now compiles.

That's a milestone, of sorts. Things really need
arranging/documenting, and there's no function to
be able to push tasks to a threadpool.



git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@377036 65c4cc65-6c06-0410-ace0-fbb531ad65f3