Work in progress
New build system (use cmake to build box2d and sfml statically on all platforms):

Works on GNU/Linux, will fail on Windows
Add a config.cmake (from SFML) to prevent building with a 64 bit compiler on Windows
Update CopyExtlibs for the new build system
Physfs module has been renamed to fs
Add physfs sources to external libraries (not built on GNU/Linux)
Rename physfs module to fs
Use the new config file and add support for physfs on Windows
extlibs: remove install
Remove nimpy dependency
Remove numpy dependency from boostrap and setup.py
Update build instructions
Update README.rst
Update readme
Update README.rst
Update README.rst
Update README.rst
Update README.rst
Update README.rst