restore djgpp, eventually
merge TODO lists
add unit tests for lib/*.c
rewrite du.c not to use explicit recursion

strip: add an option to specify the program used to strip binaries.
  suggestion from Karl Berry

Makefile.maint: extract announcement-generation into a perl script

doc/coreutils.texi:
  Address this comment: FIXME: mv's behavior in this case is system-dependent
  Better still: fix the code so it's *not* system-dependent.

implement --target-directory=DIR for install (per texinfo documentation)