WOL-1122 Entity Modeler's userInfo dictionary editor won't allow types other than String

[pascalrobert]

Reported by Paul Hoadley

To reproduce:

• Create a test project.
• Create an EOModel.
• Open the model in Entity Modeler.
• Add an entity.
• Select User Info tab.
• Select Root, hit return to get "New Key 1" key.
• Change the type drop-down to Boolean for "New Key 1".
• Enter "true".
• Select the Basic tab.
• Re-select User Info tab.
• Observe that type for "New Key 1" is now "String". (Expected behaviour: "New Key 1" would still be of type Boolean.)

Same happens for other data types: try Number as well.