Duplicating author list

Duplicating the 'Author' entry with 'Authors@R' entry.  It's what Ripley
does with MASS.  And Authors@R won't product anything with `system("R
CMD Rd2pdf --no-preview --force --output=./DocumentationPeek.pdf ." )`

Also, the 'middle' name is just combined with 'given' underneath.
`given <- c(given, unlist(strsplit(middle, "[[:space:]]+")))`.  See
http://www.adamgberger.com/3ps/R/src/library/utils/R/citation.R