def tags_with_options(packages, options)
      packages.dup.map {|package|
        yield package
      }.flatten.map {|package|
        stylesheet_link_tag package, options
      }.join("\n")
    end
def tags_with_options(packages, options)
      packages.dup.map {|package|
        yield package
      }.flatten.map {|package|
        stylesheet_link_tag package, options
      }.join("\n")
    end
Generate the stylesheet tags for a batch of packages, with options, by
 yielding each package to a block.