Remove remnants of OpenGL matrix stack use, except in old GUI
Remove GL matrix stack use in terrain rendering
Avoid some redundant state changes
Make sure that binary stars are well separated.
Respect reference frame of sibling stars in multi-star systems (fixes #2344).
Bump savegame version.
Merge remote-tracking branch 'lwho/fix2344'
Merge branch 'die-matrix-stack'
New ship "Pumpkinseed"

Stats may need some tweaking, as always.
Remove unnecessary alpha channel from a texture
Updated Deneb ship model from Alan Briggs (Zordey)
Forgot the changelog and the ship definition file