- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Correct r228114 and use the same implementation for tilde.h as for history.h

Use INCSLINKS so that "make installincludes" installs links during buildworld.

- Hide _rl_qsort_string_compare() that should be private to libreadline()
implementation.
- Add symlink /usr/include/edit/readline/tilde.h -> readline.h

All this makes it possible to build and link gdb with -ledit.

* Add the readline(3) API to libedit. The libedit versions of
{readline,history}.h are in /usr/include/edit so as to not conflict with
the GNU libreadline versions. To use the libedit readline(3) one should
add "-I/usr/include/edit" to their Makefile
(spelled "-I${DESTDIR}/${INCLUDEDIR}/edit" within the FreeBSD source tree).

* Enable its use in the BSD licensed utilities that support readline(3).

* To make it easier to sync libedit development with NetBSD, histedit.h
is moved into libedit's directory as history shows shown we keep merging
it into that location.

Obtained from: NetBSD
Sponsored by: Juniper Networks

Vendor import NetBSD's libedit of "2005/08/02 12:11:14 UTC".

Obtained from: NetBSD

Vendor import NetBSD's libedit of "2001/09/29 17:52:10 UTC".

Obtained from: NetBSD