Added a version of targetpycket.py that can be executed on top of pypy/python, without rpython.
Added a version of targetpycket.py that can be executed on top of pypy/python, without rpython.

samth/pycket,krono/pycket,krono/pycket,magnusmorton/pycket,samth/pycket,krono/pycket,pycket/pycket,pycket/pycket,cderici/pycket,cderici/pycket,pycket/pycket,vishesh/pycket,vishesh/pycket,magnusmorton/pycket,samth/pycket,vishesh/pycket,magnusmorton/pycket,cderici/pycket