0.1.1
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- Doubled the particle size (to 2²px) because of both performance and the
  Pandora's high DPI screen.
- Added manual particle selection through keyboard keys. (see readme)
- Fixed fire so it actually burns stuff (plant and oil).
- Several performance fixes for a more smooth and actually playable gameplay.
- Added a 'make pnd' command to build a pnd distribution package.

0.1-alpha
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- Initial alpha release
