configure.in: Workaround autoconf requiring AC_PROG_CXX to be used unconditionally...
src/gfxcore.cc: Fixed compilation error.
NEWS: Updated.
copy-release: Tidied up use of scp.
configure.in, debian/changelog: Bumped version to 1.0.28.
src/: gfxcore.cc, gfxcore.h: Removed unused optional parameter to GfxCore::Animate
NEWS, src/img.c, tests/Makefile.am, tests/cavern.tst: Fixed 3d file reading code to fix incorrect unpacking of compressed station names in a rare case. Also checked other rare cases work correctly.