235.44  Multiyear capital improvement contracts.--Any provision of chapters 236 and 237 to the contrary notwithstanding, school districts are authorized to award capital improvement contracts involving expenditures to be incurred for a period of more than 1 year on the basis of voter-authorized and unissued general obligation bonding authority, provided that sufficient funds are available to, and budgeted by, the school district to pay actual disbursements during any fiscal year.