grant xml fixes, make grant_type exportable so it's available to api, ad...

...d unique name for grant_money_transfer_date
 @joemurray - I was tinkering with grant stuff & grant_type_id doesn't work because it doesn't have  'export' set to TRUE

The other one is a bit more arguable - both your extension & elsewhere the uniquename 'grant_money_transfer_date' is used - but it's not in the schema. It could be changed to never refer to the grant_ version - but the grant schema uses the uniquenames quite a bit so there is internal consistency in adding it

Note that both of these inhibit using profile api to create & update grants