Now live: v0.16b of the demo!

Another batch of quality-of-life improvements that make the game feel much better. 

New stuff:

• big performance upgrades, in particular this should improve performance with: large decks, when moving lots of cards, and during the damage animation

Clarity and visual improvements:

• allow deck/draw/discard/Hall Pass style previews to be dismissed by clicking in the dark region below the cards, or clicking the escape key
• card change indicators are not longer shown when previewing a pile
• updates Blood Donor description to:

On play: Locks. While in play: whenever you play a card worth at least one heart, remove 1 from its value for the rest of the encounter and heal you by 1. Bug fixes:

• a bunch of tidy ups to the settings screens and reading save game and settings files that fix issues with not being resilient to save game file errors
• fixes a bug where if Loyalty Card had a non-zero value it would not set the score to match bust limit correctly
• fixes a bug where Wheel of Fortune spinning animation would play when previewing a pile that contained it
• speeds up Wheel of Fortune animation