[SciPy-Dev] Updated codata.py

[Vincent Davis]

I have updated the codata.py file to the 2006 values. basicly all is
the same (not that values) but added a defualt actuion to
find(sub=None) this defualt will print a list of all constants.
What to do with the old values/file. I can't think anyone whats the
old(wrong) values.

What is easier, I can attach a file or I have a branch/fork on github
of scipy-work. If you see something you would like different let me
know.
http://github.com/vincentdavis/scipy-work/blob/master/scipy/constants/codata2006.py

Vincent