v.1.4 — Coin Magnet, Variable Stellar Mass

So I got something fine up and running today. Two big changes:

1. Stars now have mass, which varies from level to level. Currently, they also change in size based on mass; though the real world is far more complex than that. Eventually I will be following actual star types and stellar lifetimes, but for now, we simply have mass variation.
2. Coin Magnet! After all, no one enjoys chasing space-pennies around. They should come to you! Additionally, the strength of the coin attraction may be a future upgrade.
3. Bunch of boring-but-important minor bug fixes.

So yeah, the game should be much more interesting now. I have a rough idea what I'll be doing tomorrow, in the mean time, have fun, and feel free to leave a comment if you think something is lacking!