Generates lists list the CPAN once a week, but for months, weeks, and days.
See the output at http://neilb.org/cpan-regulars/
This was a lashup following an offhand comment from BOOK. Things to do:
- Add link to CJM's pages
- Find_longest_chains is a copy&paste of find_current_chains - should refactor them
- See whether POSIX::strftime() would be quicker than DateTime. I reckon so.
- Highlight people who are safe in the current period
- In all-time lists, highlight chains which are still active
- Where someone has done 52+ weeks, put "(1 year)" after it.