MADISON, Wis. (AP) – Gov. Scott Walker has vetoed provisions in the state budget that would have required municipalities to disclose their spending to the state Department of Administration.   The budget would have required counties as well as any cities, villages and towns with more than 5,000 people to disclose spending on their operations, contracts and grants to a publicly searchable DOA website known as OpenBook Wisconsin by Sept. 1, 2016.   Walker used his veto powers to erase the requirement from the budget he signed Sunday. He wrote in his veto message the proposal would create an unfunded mandate on local governments and their taxpayers, saying making sure all the local governments have the technical ability to interface with OpenBook Wisconsin would be a huge undertaking and require significant investments.