Purplefin Neptuna

@A35K, its actually freeze, not lag. and the freeze is between 10-15s for me. sorry for my bad english.

with 1.7.3-2 release i encountered long freeze when loading the map view, and the freeze worsen when i use bigger planet packs. i think something happened when loading celestial bodies' texture.

An easy, stock, and everyone first Mk1-3 Lander successfully landed on Duna.