UFO:Alien Invasion Code

* removed glcmds from md2 files (to reduce the filesize)

* filename was too long

* use the trunk base content

* delete the base to allow to copy the trunk one

* craft_item_astro: renamed due to filename-length issues
* ...ufo: made targeting-box and astrogatiopn show up in pedia.

* Rotated and scaled craft items so they fit into the maps.
* @mattn: feedback about scale welcome.

* exported astrogation model
** TODO: Needs scaling and rotating, like the target computer, too