[CFR] lang/python26 removal

[René Ladan]

Hi,

lang/python26 expired a few days ago, so I patched Mk/bsd.pyton.mk to
exclude lang/python26 and patched the USE_PYTHON* lines of all ports
referring to Python < 2.7. You must remove lang/python26 manually to not
break INDEX.

The patch is available at
http://people.freebsd.org/~rene/patches/python-to-27.diff
The bsd.python.mk patch itself is also here:
http://people.freebsd.org/~rene/patches/Mk__bsd.python.mk.diff

mat@ already gave an "OK" for the USE_PYTHON* bumps.

Does this patch and removing lang/python26 look OK to you?

I'm not on python@ , so please CC me.

Regards,
René