* admin/package-update.sh: Disable org-mode fetch by default. Add
option ($2 set to anything) to run fetchers anyway. Use PATH
instead of explicit executables. Create tarballs from the
unpackages packages in $PACKAGE_TARBALLS.
* admin/org-synch.sh: Use PATH instead of explicit executables.
Qualify $pkgname consistently. Run org-synch.el with --eval to
pass $pkgname directly.
* admin/org-synch.el (org-synch): Take a package filename
parameter instead of guessing the package name. Extract the date
as a fixed substring and do sanity checking on it.