[fixed]g3dviewer Segmentation fault when quit

[titi_son]

I often noticed that the g3dviewer always "crashes" with a segmentation fault if you quit it. I though this was a known issue but titi said this was never reported.
To get/reproduce the Segmentation fault you need to load a g3d-file and quit the g3dviewer after that ( it doesn't matter if you quit with crtl+q, the menu or the x on the window )

[Baŝto]

Would say, it doesn't worth it. ("Clear All" also leads to a segfault)

Sooner or later the WxWidget g3dviewer will get a replacement. (I'm optimistic)

[softcoder]

Fixed now in git