v0.5.10 known bugs

Hey folks,

Things have been quite chaotic around here, but I finally had a chance to play through the entire game and take some notes. During that play-through, and thanks to feedback from other player, I am now aware of the following bugs that will be resolved in the near future. 

v0.5.10 Known Bugs:

• Music tracks have a chance of repeating.
• Sometimes a random projectile spawns near the top left corner of the planet.
• Even after it is fully upgraded, the "Accuracy" upgrade will re-appear in the shop after completing a level, on game over, or on moving to a new planet. Thanks for reporting this, @thePalindrome.
• The spaceship may spawn in facing away from the planet. It will immediately rotate towards the planet, so it isn't a big deal, but it bugs me. 
• From the Planetary Map, you are able to click the "Quit" button multiple times, even if the quit confirmation pop-up is displayed. This results in stacking of the confirmation pop-ups, meaning you will have to click each one to make them go away.
• The Resources total is not always accurate on the Planetary Map screen.
• The "Moons Remaining" counter on the Planetary Map is not updating properly. 

Luckily, none of these are game-breaking, but, I'll be resolving them just the same. 

Thanks for playing!

boulean