Fix fof form field non existing property set.
Removing default (string) type conversion of value in __set.
Fixing setting of nonexistent properties in a field class.
Making JLog message more helpfull for debugging.
Merge pull request #2270 from Achal-Aggarwal/formfield-set-nonexistent-property

Formfield set nonexistent property issue.
Update CHANGELOG
# [#32344] *Overrides bug: Warning: constant() [function.constant]:
Couldn't find constant JPATH_0
(Fix #2279)
[32344] same in public function delete($cids)