Required files
fpm/namespace
fpm/package
fpm/package/dir
fpm/package/gem
fpm/package/deb
fpm/package/npm
fpm/package/rpm
fpm/package/tar
fpm/package/cpan
fpm/package/pear
fpm/package/empty
fpm/package/puppet
fpm/package/python
fpm/package/osxpkg
fpm/package/solaris
fpm/package/p5p
fpm/package/pkgin