Changed notify_rules to daily.rb since it runs daily
Changed helper to detect if year is 4 or 2 digits
Split ocr rule out so it can be run with launchd

Since launchd can run on file changes I can run just these rules when I
scan something to the ocr-pdf folder.
Added the move rule for files that OCR had run on
Added rule to email myself a file as an attachment
Added method for parsing dates that use month names

Decided to require Chronic rather than writing out all posible
abbreviations of month names.
Moved emailing files as attachments to separate file

This now allows emailing to a new address just by creating the folder.