Bugfix: resolve symlinks in $SBOX_CPUTRANSPARENCY_METHOD before session is created
Bugfix: resolve symlinks in $SBOX_CPUTRANSPARENCY_METHOD before session is created

- a symlink in the cpu transparency method path (i.e.  path to
  qemu) caused trouble with the "emulate" mode on a system where
  qemu comes from tools_root and tools_root had newer glibc than
  the system itself ("accel" mode was OK). Not a very usual
  configuration, but it was a bug anyway, and the fix is simple.

h113331pp/scratchbox2,loganchien/scratchbox2,ldbox/ldbox,ldbox/ldbox,BinChengfei/scratchbox2,madscientist42/scratchbox2,OlegGirko/ldbox,ldbox/ldbox,OlegGirko/ldbox,h113331pp/scratchbox2,BinChengfei/scratchbox2,h113331pp/scratchbox2,madscientist42/scratchbox2,loganchien/scratchbox2,madscientist42/scratchbox2,madscientist42/scratchbox2,BinChengfei/scratchbox2,loganchien/scratchbox2,madscientist42/scratchbox2,lbt/scratchbox2,OlegGirko/ldbox,OlegGirko/ldbox,lbt/scratchbox2,BinChengfei/scratchbox2,loganchien/scratchbox2,BinChengfei/scratchbox2,OlegGirko/ldbox,h113331pp/scratchbox2,lbt/scratchbox2,h113331pp/scratchbox2,loganchien/scratchbox2,lbt/scratchbox2,ldbox/ldbox,madscientist42/scratchbox2,lbt/scratchbox2,ldbox/ldbox,h113331pp/scratchbox2,OlegGirko/ldbox,loganchien/scratchbox2,ldbox/ldbox,BinChengfei/scratchbox2