Fission Bonus - Patch for mistake made with bonus detection.

Also including a patch for the size reduction.

fmax( ( rand() % 95 ),( planetd.size - (int)( planetd.size * (float)( rand() % 35 ) / 100.0 ) --

So whichever is greater between Random-to-95, and size-35% (so it can after many nukes potentialy grow slightly in size)