Restricting taxpayer subsidies of private business; prohibiting the certification of new or modification of existing tax increment financing (TIF) districts after a certain date; defining business subsidy and requiring public hearings for city or county provision of business subsidies and providing for host municipality requests to certain other cities, counties or school districts for a share of the subsidy; repealing the authority of cities, towns, counties or school districts to grant property tax abatements or deferrals benefiting business property (mk)