0.3.7 Autobuyer restored (and then refined a bit)

The autobuyer overhaul has been overhauled

• Reverted to the 0.3.5 state
• Refined the hidden `request_autobuy()` gridlock-breaker. The default autobuyer conditions now work better than before

Also:

• The Upgrade which unlocks Grit cannot be bought before the Upgrade which unlocks Tea
• Fixed the affordable Upgrades counter not working

0.3.8
Fixed Chamomile and Medium Roast