Expanded use of opdata.parameters. Settings will be updated in both
opdata.parameters and ini.php if present in both. Deleting a setting
from ini.php will result in that setting living only in the
opdata.parameters table. Expanded support for arrays (including
keyed arrays) and booleans. SpecialDept handler mapping cannot
yet be handled by opdata.parameters because it's a multidimensional
array.