Added a custom back-end

[Jeff Lankford <JLankford@jsf.northrop.com>]

I added a custom database back-end to both OpenLDAP 1.2.3 and 1.2.7.
In addition to the back-end directory, i changed the following files in the
core directories:
       ./acconfig.h
       ./configure
       ./configure.in
       ./build/top.mk
       ./include/portable.h.in
       ./servers/slapd/backend.c
       ./servers/slapd/proto-slapd.h

There was no documentation describing how to BUILD (versus write)
a back-end, but i found that changes to these files were needed
to build a new back-end.

Is this the correct list? Did i change to much? or wrongly change files?
-- 
Email:JLankford@NRTC.Northrop.com, Voice:562-948-7950, FAX:562-942-6835
Northrop Grumman Corp., 8900 E. Washington Blvd., Pico Rivera, CA 90660

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