v1.5.3

• Audio streams are decoded on a separate thread, avoiding blocking the rendering loop.
• Small improvements to Swarm panel.
• Increase hiring morale boost.
• Add planet_name to GameSummary.
• Increase storage bonus for Jester spaceship.
• Bot teams autohire auntil they have enough players for a game.
• We should have a semi-working tournament feature! Still lot to test, best way I think is to put it out there and get feedback.