v0.3.0

• Configuration file: edit configuration.yaml to change mutation rate, dish size and dozens of others parameters.
• New reproduction code: amongst other things, narjillos "shoot" eggs, and egg parameters are determined by genes.
• Smoother graphics: the program consistently runs at 30 FPS on modern machines.
• Smarter saving: frequently persisting a command-line experiment was taking more time than actually running it. Now everything is much faster.
• More small improvements and bug fixes.