Function parses an ICS file and returns formatted as an Org event,
currently just prints to standard out, but will modify to insert to
current buffer / buffer of choosing
Move a couple of extra functions into lib directory with ics2org, to
be a bit more organised
Point org-agenda and gnus-icalendar to correct file
Add BBDB anniversaries to org-agenda, remove diary integration since
it's handled by org-calendar-holiday function