simple and easy installation of SfePy onto Windows

A new wiki page has been created to focus on simple and easy installation of SfePy onto Windows using only python(x,y) as using EPD results in many failures.

http://code.google.com/p/sfepy/wiki/Simple_Windows_Installation

** detailed and advanced instructions of windows installation is at http://code.google.com/p/sfepy/wiki/PythonXYWindowsInstall