Don't set certificate paths on packages - they are ignored by recent agents.
Removed obsolete and defunct type cast.
Enabled emulation of BOOL datatype for MySQL.
Removed unused database schema definitions.
Fixed legacy schema manager trying to manage migrated tables.
Cast exception code before re-throwing (required for PDO exceptions).
Fixed accidental deletion of unrelated client config option.
Made PackageDownloadInfo a view for use with legacy code only.
Eliminated unused return value.