Link to encoding guidelines now points to Whitman Archive wiki; private wiki established

Following successful installation and set-up of the private Whitman Archive wiki (http://whitmanarchive.org/staff/wiki/index.php/Main_Page username and password required) by Jason Bougger in CORS, I have moved private content from the public wiki (http://whitmanarchive.org/staff/wiki/index.php/Main_Page) to the private wiki. I have also revised the html of the About index page (http://www.whitmanarchive.org/about/index.html) to point to the encoding guidelines on public wiki. The major and most noticeable advantage of this change is that the encoding guidelines are no longer password protected, as they were when the wiki was hosted on segonku. Other information is or will be available to users of the Whitman Archive via the public wiki, including publicity and work history documents. The private wiki will eventually replace the Work in Progress page. More updates are forthcoming.

~Liz