[python-advocacy] OSCON: Fifty-word blurb

[Roy Smith]

> If the purpose is marketing I don't think is it worth highlighting C & C++
> especially in this age of Jython, Iron Python and PyPy.

C is still the lingua franca of today's world.  When it comes to extending
and embedding, C is indeed where it's at.  I doesn't matter how cool a
language is, if it's not easy to interface it with pre-existing C
libraries, that's a problem.  So, it's worth highlighting.