Generation documentation regarding backend (ITS#201)

[claird@neosoft.com]

Full_Name: Cameron Laird
Version: current (1.2.3)
OS: many, including FreeBSD
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (206.109.12.48)


"The OpenLDAP 1.2 Release README"
<URL:http://www.openldap.org/software/release/readme.html>
says SLAPD requires "LDBM compatible datastore (Berkeley or GDBM).

In contrast, the "Quick-Start Guide to Running slapd" says, "Otherwise [if
neither
Berkeley nor GDBM is installed], the defaults should be OK to get you started." 
I
take that to mean that it's possible to run with *no* external datastore. 
<URL:
http://www.umich.edu/~dirsvcs/ldap/doc/guides/slapd/2.html#RTFToC8>

I understand that advanced users tie in all kinds of back ends. 
"Out-of-the-box", 
though, my understanding is that the generations (the configure) only works
with
exactly one of Berkeley or GDBM.  I recommend that the Quick-Start Guide make
this
clear.