[syslog-ng] documentation missing sql options

[Patrick Hemmer]

The documentation (at least 
http://www.balabit.com/sites/default/files/documents/syslog-ng-ose-3.3-guides/syslog-ng-ose-v3.3-guide-admin-en.html/index.html-single.html 
<http://www.balabit.com/sites/default/files/documents/syslog-ng-ose-3.3-guides/syslog-ng-ose-v3.3-guide-admin-en.html/index.html-single.html#reference_destination_sql>) 
is missing a couple of options for the sql destination driver
* session-statements
* retries

Was just going through and noticed cause I need to use the 
session-statements one.
<http://www.balabit.com/sites/default/files/documents/syslog-ng-ose-3.3-guides/syslog-ng-ose-v3.3-guide-admin-en.html/index.html-single.html#reference_destination_sql>