Disable ALL triggers on authority.control_set_authority_field before
altering and updating the table to avoid an error related to altering
a table with pending trigger events.
The triggers are enabled again after the updates and alters are done.
Signed-off-by: Jason Stephenson <jstephenson@mvlc.org> Signed-off-by: Kathy Lussier <klussier@masslnc.org> Signed-off-by: Jason Stephenson <jstephenson@mvlc.org>