in asf-site-src/config.rb [75:85]
def manipulate_resource_list(resources)
parent = Pathname.new(@source)
build = Pathname.new(@destination)
::Middleman::Util.all_files_under(@source).each do |path|
dest = build + path.relative_path_from(parent)
resources << CopyInPlaceResource.new(@sitemap, dest.to_s, path.to_s)
end
resources
end