Account for Non-Depreciable Property in Real Estate

Only enter depreciable property (e.g. buildings) into the MaxiFi Real Estate screen.

Handle non-depreciable property (e.g. land) as special expense at the time of purchase and as two special receipts when sold: one not taxable for return of capital (i.e. the basis) and one taxable as capital gains for the increase in value over the basis.