Mod: Updated Mod: Sgqwonkian Crisis v1.5

[Fingers]

I've started the game about 20 times now, and played the gongship mainquest a couple of times. (I set it to always)

The problems so far:
- if you kill the gongship in combat (say, by using a gong) it will crash because the popup tries to display a non-existent image (ships/url_gong.png)
- sgqwonk ship silhouettes have a black square around them. If you can't get PNG images to work, use TGA for this... it's easier.
- the button graphics for the same ships are also broken. The outline frame seems to be all solid.
- Urluquai gong ship sprite (url_gong.tga) seems to have an alpha problem too (a black fringe in front of the gong in the main sprite, a huge black fringe around the gong in the 64x64 image).

I did not see the startgame crash, or any other crashes besides the misnamed image thing. I'll ask Ed to try and debug it on the Mac.