Major overhaul -- most scripts rewritten or updated.

Major overhaul -- most scripts rewritten or updated.

	* etc/pkgusr/bash_profile (LESSCHARSET): Everything's god-damned
	UTF-8 these days
	(PKG_CONFIG_PATH): More readable.
	(SUPPRESSLOCALEDIR): Add.

	* etc/pkgusr/handy_funcs (find_pkg_deps): New.
	(instg): New, for grepping install logs for '*** msg'.
	(less-or-cat): New, for log viewing, does what it says.
	(H-pkg): Much nicer format, pipe through less.
	General tidy up.  Convert a lot of tiny functions to aliases, plus
	added a couple of new ones... ipkg->showinst, gpkg->showgen

	* etc/pkgusr/skel-package/build (SRCTREE): New.
	(configure_commands): Use $SRCTREE
	(update_commands): Use find_pkg_deps()

	* etc/pkgusr/zsh/zsh-pkgtools (pkgwant): Use grep -w to eliminate
	false positives.

	* etc/sudoers.d/99-pkgusr: New.  Sudo config to allow pkgusrs to
	run ldconfig as root.

	* usr/bin/forall_direntries_from: Update Bastard settings.
	Make -noleaf optional, default off.
	Update comments.

	* usr/bin/grep_all_regular_files_for: Ditto.

	* usr/bin/list_suspicious_files: Ditto.

	* usr/bin/header-symbol-search: Update Bastard settings.

	* usr/bin/library-symbol-search: Ditto.

	* usr/bin/lesspipe.sh: Get charset from `file -i' to see if
	strings can be used.

	* usr/bin/uninstall_package (run): Only remove directories if they
	are empty.
	Do NOT let root use this script.

	* usr/lib/pkgusr/chgrp: Handle cases where chgrp options are used
	and also where the user is not a member of the group trying to be
	changed to.  Handle both names and GIDs
	Don't let root use this script.

	* usr/lib/pkgusr/chmod: Handle cases where chmod options are used
	and also all set{uid,gid,sticky} bit operations.
	Don't let root use this script.

	* usr/lib/pkgusr/chown: Rewrite.  Handle all chown scenarios.
	Don't let root use this script.

	* usr/lib/pkgusr/mkdir: Comment about the irrelevance to my
	needs.
	Don't let root use this script.

	* usr/lib/pkgusr/update-pkg-project (upd_pkg_deps): New, use it,
	does what it says.

	* usr/lib/pkgusr/install: Complete rewrite.
	Don't let root use this script.

	* usr/lib/pkgusr/ldconfig: New. Wrapper to run ldconfig via sudo.

	* installdir.lst: Update.

	* README: Update.

	* LFS-pkgusr-hint.txt: Updated to current version of the
	LFS hint.

Signed-off-by: Steve Youngs <steve@sxemacs.org>