Added Gems from Walt Whitman

I have published Ed Whitley's transcription of Gems from Walt Whitman in Published Works/Books by Whitman, along with his introductory essay. I have also revised the introduction to the Rhys and Rossetti editions to credit Ed and to correct a handful of typos that Ken noticed.

~ Brett

Rossetti and Rhys pages tweaked

I've gotten rid of all of the anchor tags in these XHTML files, since they were creating a weird effect: mouseover of *any* text caused underlining to appear, as for a link (though clicking didn't produce any results). That's gone. I've saved backups of the old files, in case they will be of use; I know work is going on to convert these to XML anyway, so the XHTML versions may be replaced altogether soon.

~Brett