Trying to change the datecreated attribute of a product OOPSes instead of giving a "read-only" error

[Ursula Junque]

Trying to change the datecreated attribute of a project through the API OOPSes. It's better if it returns one read-only attribute error instead of oopsing like this: OOPS-1082S231

 ForbiddenAttribute: ('datecreated', <Product at 0x2aaaaf2162d0>)

<bac> the datecreated is a readonly attribute
<bac> no one should ever be able to change it
<bac> we can mark it as readonly in the interface and then export it in the zcml and then people will get a 'read only' error instead of a forbidden

[Brad Crittenden (bac)]

RF 7508