Added stub function for counting first and last appearance
added count author appearance first and last in the "Publication by Author" view
Added function for counting first and last appearance for an author
Merge commit '3a42a96ecc29367f43a68c1a7b2baa5a7e94b931' into CountFistNLast
Changed so that when only 1 author is in a pub's list, it counts as last appear
merged with countFirstNLast