Update to 2.2.6

* Replace PKG_LEGACY_OPTS with PKG_OPTIONS_LEGACY_OPTS

Changelog:
2010.11.22 - GNU nano 2.2.6 "Pimp my BBS" wants you to go to
                www.desertbus.org and donate a few bucks for the great
                Child's Play Charity!  This is just a small release to
                update a bug where restricted mode was not particularly
                restricted since key bindings were introduced. It also
                signals the return of win32 builds which now feature
                nanorc support; please see the FAQ for details of how
                to enable it, this feature is a bit of a kludge for now.
                Remember that when all else fails, USE SPACE JUMP.

2010.08.05 - GNU nano 2.2.5 "Inactivity timeout" is now available.
                This release includes slightly less restrictive checkng
                when writing files in strange environments (e.g.
                when being used out of crontab).  For very strange situations
                (such as where you cannot change the permissions on the
                file you're writing, there is a new rc file option
                "allow_insecure_backup" to be even more permissive and
                allowing the write to proceed.  Also included are
                some syntax highlighting updated, and that is about it.
                Keep fighting the good fight children.

(ryoon)