Replaces $madrigal_status with $season
Renames 'nextyear' $status to 'postfaire'
Renames 'thisyear' $status to 'premadrigal'
Renames 'soldout' $status to 'ticketing-soldout'
Minor documentation updates in dates.php
Changes index.php to dates cycle

- Adds includes in index.php
- Adds includes/index- files for index.php includes
        - faire
        - postfaire
        - premadrigal
	- ticketing
- Updates copy on includes/madrigal-premadrigal.php for selling
- Adds a couple of CSS rules for .bigger, used in
includes/index-ticketing.php
Puts pradvertising.php on the dates cycle

- Adds dates logic to pradvertising.php
- Adds includes/pr- files
	- faire
	- postfaire

Why nothing for Madrigal? I don't think we sell ads then, though
I have reached out to our advertising coordinator for comment.
Cleaning up some spare bits in pradvertising.php
Merge pull request #4 from benlk/dates-change

Puts the dates cycle on more files