# Modified for HTML spec to not generate self-closing tags
# Examples:
# * <tt>tag("br") => <br></tt>
# * <tt>tag("input", { "type" => "text"}) => <input type="text"></tt>
def tag(name, options = nil, open = false)
  "<#{name}#{tag_options(options.stringify_keys) if options}" + ">")
end