setuptools replaced with distribute

[Ruslan Makhmatkhanov]

Ports users,

before reporting any breakages, please note that some intervention is 
required. Here is UPDATING:20130305 entry:

"""
devel/py-setuptools was replaced with devel/py-distribute. Please do
the following according to package manager used. py-setuptools port
will be removed shortly.

# portmaster -o devel/py-distribute devel/py-setuptools
   or
# portupgrade -fo devel/py-distribute devel/py-setuptools
   or
# pkg set -o devel/py-setuptools:devel/py-distribute
"""

-- 
Regards,
Ruslan

Tinderboxing kills... the drives.