Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Update dialog to version 20100428. This changes the license under which
dialog is distributed from GPLv2 to LGPLv2 and introduces a number of new
features and a new and better libdialog API. The existing libdialog will
be kept temporarily as libodialog for compatibility purposes until sade,
sysinstall and tzsetup have been either updated or replaced.

__FreeBSD_version is now 900030.

Discussed on: -current
Approved by: core
Obtained from: http://invisible-island.net/dialog

When wrong directory choosed and chdir failed, directory name
was not reset to old name causing any file choosen put error
diagnostic about wrong directory, fix it by resetting back
to old name after chdir failed.

Add \r as alias to \n, some telnets have problem with that.

Should go into 2.2
Submitted by: "Anatoly A. Orehovsky" <tolik@mpeks.tomsk.su> & me

Add another hateful global to libdialog (what the heck, there are already
so many). For now, the only extended attribute implemented is NO ECHO,
useful for things like passwords. See TESTS/input2.c for an example.
This should go into 2.2.

Collapse some common arrow key handling semantics from sysinstall into
PollObj(), simplifying code which uses it.

Remove trailing whitespace.

Don't make TAB and BACK-TAB destroy field contents incorrectly.
Submitted by: gibbs

Upgrade.
Submitted by: Marc van Kempen <wmbfmk@urc.tue.nl>

file selector, helpline, helpfile and more, with my fixes
Submitted by: wmbfmk@urc.tue.nl