Bug 12214: display SQL errors in reports to users

Bug 12214: display SQL errors in reports to users

When a user runs a report containing an SQL error, no
error is shown to the user.  This patch fixes this.

To test:
1) Run a report with known good SQL.
2) No error is shown.
3) Run a report with bad SQL (eg. a typo in field name)
4) No error is shown.
5) Apply patch
6) Repeat 1-4. For the bad SQL report, the database error
   should be shown.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>