 used by dspCheckRegister and viewCheckRun;
        shows all the checks for a given date range, bank account, 
        check number(optional), and recipient(optional), optionally restricted
        to 'new' (un-posted/replaced/deleted) checks for viewing check runs.
        fills in the check item detail if showDetail is passed.
 Copyright (c) 1999-2014 by OpenMFG LLC, d/b/a xTuple.
 See www.xtuple.com/CPAL for the full text of the software license.
