[CFT] FreeBSD python25 move to python26 as default version

FreeBSD portsでpythonのデフォルトバージョンを2.6に上げるので、テストしてくれる人を募集してる。

  Make sure your portstree is uptodate,
    fetch the patch here:
    http://miwi.homeunix.com/patches/python262.diff

    Apply the patch. If you have 2.5.x installed, perform an
    upgrade of lang/python25 to lang/python26 with a command like:

    # portupgrade -o lang/python26 lang/python25

    If you want to keep 2.5.x installed alongside 2.6.x, set the
    PYTHON_DEFAULT_VERSION variable to 'python2.5' without quotes in
    make.conf, then go to lang/python and execute

   # portupgrade -R python

    Once the installed Python has been updated to 2.6, by using one of the
    methods above, it is required to run the upgrade-site-packages target in
    lang/python to assure that site-packages are made available to the new Python
    version.

    # cd /usr/ports/lang/python && make upgrade-site-packages

This Makefile target requires ports-mgmt/portupgrade to be installed.