Reorganized the package structure

Ignore-this: 920ad04d7939ebcdf034c7467d3dedca

darcs-hash:20100120115105-1e3d8-163f6fa261e77c3ca92240dc3d4856a9170b7b24
Remove prefix from install

darcs-hash:20100120134832-58252-63f2e3763a449e38d7f0039f7c6a4433bdbcdda6