Updated PyNEC directory to use numpy instead of numarray.  Fixed wrap/sr...

...c files so that it will compile.

First thanks for sharing this.  In the past I used supernec with matlab, but it had its issues and I have been looking for something like this for a long time.

I just got this to compile and it looks like it is working with current python 2.7, numpy, etc. with the changes I have here.