Reduce memory footprint by only allocating space for a fd first time
we see it.  Few if any servers will ever see 64k fd's in use.

Move the sbuf into the logline structure for simplicity.

Access the logline structure through a pointer instead of indexing
the array all the time.

Reduce amount of malloc/free traffic for performance.

Use the "cooked" SHMlog api where the length, fd, etc are broken out
as arguments for us.  Pass the FILE* where we want the stuff to
go as private data (stdout for now).

Add FlexeLint files.

Now over to Anders again...



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@981 d4fa192b-c00b-0410-8231-f00ffab90ce4