[Bf-webcontent] fix for API link in Education and Help

[Dalai Felinto]

Hi,
Nathan Letwory suggested me to write to this list regarding the site. Here it's:

In the Education and Help page -
http://www.blender.org/education-help/ the link for the latest API
(Python API reference (2.5)) is still 256_4 instead of 257_1.
Also, would it be possible for, on top of old API pages we have a
small disclaimer saying that this is not the latest page?
Google often finds the not so update API page.

Thanks,
Dalai