Summary: clean up template-scriptname which is derived from template-scriptname.in

Bug Description: FHS: move exes to _bindir; move ns-slapd to _sbindir
Reviewed by: many people (Thanks!)
Fix Description: In order to be more FHS compliant, we need to make the following changes:
1) move files executable by end users to _bindir (e.g. /usr/bin) - this means logconv.pl, ds_newinst, dbscan, etc.
2) move the server executable ns-slapd to _sbindir (e.g. /usr/sbin)
And, to be more packaging friendly, the additional changes:
3) move libback-ldbm to the plugins dir - it is a plugin
4) use the libtool -avoid-version flag with plugins - we don't need the .so.0.0.0 for plugins
I had to add support for sbindir and SBINDIR to create_instance and ds_newinst.  We were using serverdir for 3 things - command line programs, server specific shared libs, and the server executable itself.  These are now in 3 different places.  The biggest change was to the scripts.  I kept serverdir and SERVER-DIR to be the location of the server shared libs to avoid changing even more stuff.  I had to add SERVERBIN-DIR to the scripts - this is the location of ns-slapd and is set by sbindir in create_instance (which defaults to SBINDIR from Makefile.am which defaults to $prefix/sbin in configure - whew).
I've tested instance creation with these diffs - everything seems to work fine.
5) reorder files in alphabetical order - suggested by nkinder
6) add $LDFLAGS to test in db.m4
7) touch all template/wrapper .in files to make them newer than their corresponding files
Platforms tested: RHEL4, FC6
Flag Day: no
Doc impact: Yes, but the docs will have to change quite a bit for all of the FHS related changes.

Summary: Use autoconf to generate task perl script templates
Comment #10, #11, #14
Note: This is a generated file by autoconf.  Checking this file in to support
the old style build.  When migrating to the autotoolized build is completed,
this file is supposed to be removed from CVS.