

Yaws files and appmods can return {page, {Options, Page}} instead of
{page, Page}.  Options is (an option or) a deep list of options.  At
the moment an option is {header, Header}.  I thought this might be
useful for Vary or Content-Location headers.


git-svn-id: 8a657200d0854a286cb489334e0912b153950abf@474 9fbdc01b-0d2c-0410-bfb7-fb27d70d8b52

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