Start making the main server process use the async stuff.
More on main server async.
A bit more on main server async.
Progress on main process async stuff. Now compiles.
Progress on main async stuff.
Bug fix for read/write pipes.
Tidy the included yajl.
Merge branch 'async_main' into 2.0.9

Conflicts:
	src/asfd.h
	src/server/chlds.c
Merge branch 'async_main' into 2.0.9
Merge remote-tracking branch 'upstream/2.0.9' into 2.0.9