configure web site

[djbpitt]

• [x] Create ru-rhetoric project group on obdurodon and add all team members and instructors
• [x] Create group-writable setgid directory space on obdurodon with Ian as owner
• [x] Create virtual host at ru-rhetoric.obdurodon.org
• [x] Create "obdurodon" subdirectory for web site files in repo, with dummy index.xhtml file, and upload the file to obdurodon
• [x] Update projects.txt file in course admin folder
• [x] Notify project team and instructors