Droid Assault 1.91.8 Released

Very minor tweaks here, but hopefully appreciated:

• You should be seeing the Super Health a lot more often now
  
• Ordinary health pickups now repair your droid max hitpoints by 12.5%
  
• Droids which have no use of bouncy bullets or sharp bullets (eg. the disruptor weapons and flamers) won't be able to pick those powerups up