Batch script for setting up souma on windows
Removed packages from requirements_win.txt

The removed packages need serveral other libraries for compiling and are
therefore better installed pre-compiled
Numpy precompiled binaries

Added precompiled numpy binaries directly, because no online source is a
valid easy_install executable
Workaround for py2exe error

py2exe can't find flaskext module if it doesn't have an __init__.py