Fixed: bezeled is set to yes when making a right click on a non-selectable CPTextField in a cell of a CPTableView

Previously, when making a right click on a non-selectable CPTextField which is contained in a dataView of a CPTableView set the bezel attribute to yes.

Now, when making this things, Cappuccino will check if the CPTextField if editable or not.
Merge pull request #2230 from Dogild/TableViewBezeledTextField

Fixed: bezeled is set to yes when making a right click on a non-selectable CPTextField in a cell of a CPTableView