Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

Regularize copyright notices for me.

Remove stray All Rights Reserved and other non-license stuff. Make sure all
copyrights have year.

[man] Fix return type of BUS_ADD_CHILD(9)

Fix return type of BUS_ADD_CHILD(9) in SYNOPSYS section,
it should be device_t, not int

PR: 207389
MFC after: 3 days

BUS_ADD_CHILD calls device_add_child. device_add_child does not call
BUS_ADD_CHILD. Make it explicit since it follows the command paradigm
rather than the callback paradigm. Add other clarifying notes as well.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Sort sections.

Sweep formatting and assorted fixes.

Add some verbage over the difference between BUS_ADD_CHILD and
device_add_child. The former calls the latter.

Pointed out by: jhb

The DEVICE_IDENTIFY man page refers to this, create a dummy one
directing people to device_add_child.