Add plural in the messages for archivebot.py (not yet present in the rewrite).
Add plural in the messages for archivebot.py (not yet present in the rewrite).

This script should be converted to rewrite and may need script changes to work with the plurals.

git-svn-id: 9a050473c2aca1e14f53d73349e19b938c2cf203@9940 6a7f98fc-eeb0-4dc1-a6e2-c2c589a08aa6

legoktm/pywikipedia-rewrite