The domain function is designed to test the following RPC interfaces
with the master server:

show_domain
add_object_to_domain
delete_object_from_domain

ASSUMPTIONS:
	the database table is clean or cleanable

1) ensure that the database table is empty
2) test it is empty
3) add an element
4) delete that element
5) add it back
6) delete a non-existant entry
7) add a second entry
8) add it again to get the DB error
9) add a null entry
10) delete a null entry
11) add one less than the longest string
12) add the longest string
13/14) add even longer strings
15) add a string with control chars
16) delete a string with control chars
17) add more elements to the table
18) check that data is in the database

			RETURNS 
function
show_domain		valid(16)/no_match(2)
add_item_to_domain	valid(3)/integrity error(8)/invalid(9)/marshallerror(13)
delete_item_from_domain	valid(4)/no_match(6)/invalid(10)