[ptx] autopano-sift 2.0: fast, easy to install and now with a native Windows GUI

[Pablo d'Angelo]

Hi Sebastian,

> Hello panorama enthusiasts,
> 
> 
> I am proud to announce the version 2.0 release of my automatic panorama tool
> autopano-sift.  As usual it is available at:
> 
>      http://cs.tu-berlin.de/~nowozin/autopano-sift/

This is really great! Thanks a lot. Also to Eric Engle!

ciao
  Pablo