Patch for /src/cb/condition-builder.js #7

Added '> div > table' to lines 126, 127 and 130.  This stopped the query 
builder looping through all inner tables multiple times.  When choosing the 
following:

(and)
code contains test1
(add +() set to and)
country contains test2
government contains test3
(add +() set to and)
continent contains test4

When running it with the original file, it produces this:

( code contains test1 and ( country contains test2 and govt contains test3 and 
( cont contains test4 ) ) and ( cont contains test4 ) )

Notice "cont contains test4" is repeated.  If you add the find to look for '> 
div > table', it will only search each table once, in the order they are 
displayed and produce the following output:

( code contains test1 and ( country contains test2 and govt contains test3 and 
( cont contains test4 ) ) )