Cast bool params to int in getDebugQuery

[scottfriebel]

When executing a query a bool parameter is cast to an int since SQL doesn't really like bool types. In the 'getDebugQuery' function though there is no handling for bool types so you get an output like

SELECT 
    *
FROM
    orders
WHERE
    is_paid =  AND user = 1

[DarkSide666]

If that's the case then it looks like bug.