#238 nsdb.so undocumented for 4.x series

[Dan Chak]

It is not mentioned anywhere in the 4.x documentation
(including the sample scripts!) that nsdb.so must be
loaded manually. This is a change from the 3.x series.

missing in the database administrator's guide:

http://aolserver.com/docs/admin/dbadmin.html

and the reference config:

http://aolserver.com/docs/admin/config-reference.tcl.txt

and reference db config:

http://aolserver.com/docs/admin/sample-db-config.tcl.txt

Should also be included in the example .tcl file
included in the distribution, if it is not already (I
believe it is not).