Always set fs=none if NO_ZFS is set
Sort mtree exclude lists, this will help merging and spotting duplicates in the future.
Do not remove directory mounted via nullfs.  This leads to panic when umounting.
This directory is removed during stop_build after umoount.
Add an rc script for daemon
jail -c: Fix NO_ZFS so -f none is not required
Update poudriere.conf.sample for NO_ZFS
bulk -t: Only test ports specified (including -a). Not dependencies.
Add NO_ZFS to wiki page
Hide 'dataset does not exist' on first execution of poudriere on fresh ZFS
Fix location of poudriere.in
append_make: Change params to 'src dst' with dst being the actual makefile to write to
options: Validate that porttree exists before using it
options: Fix make.conf not being respected

Ticket:	[a6ec3ca8a]
Reported by:	jhibbits@
ZFS: Workaround zteardown deadlock on 9.0/9.1-RELEASE when SIGINTing compute_deps

There may be other cases of this. This specific case was parallel_run
compute_deps() executing in the host, reading/writing to the pkgname cache
in the ZFS jail and executing the make -V inside the jail. Somewhere here
was a race condition where it would hold a fd open to a deleted file while
zfs destroy was called.

The fix is to SIGKILL all parallel children before cleanup and wait for
them to exit.
Remove unneeded make_index.awk
Add some comments to the awk files
Add some comments to the libexec code
make_index: Attach to the jail when executing
Respect style(9) for comments
make_index: Update usage()