Minor changes to reward tiers (Patreon)

No prices are changed but the Fanatic (6 USD) tier has been unpublished. That doesn't mean it's ended, it just means I'm not taking any new patrons at that tier. I've also added a couple of new reward tiers to attract patrons. I've altered rewards for some others that no one was subscribed to. Review the reward tiers to see if you're interested in upgrading (or downgrading).