Adds updateFiltered method to Record class

[aitken85]

Prevents the model throwing errors when post data contains undeclared model properties. This PR might be moot as Gwilyn mention there's already a fix somewhere.

Builds upon update() by filtering out non record properties from given config, allowing for use with POST data

Usage:

$business->updateFiltered($_POST);
$business->save();

[gwillz]

Indeed.

Karmabunny/kbphp@ff61bb0