Gov. Jerry Brown waived some permitting and review requirements Thursday for Oroville Dam as California rushes to repair a main spillway that partially washed away under heavy winter runoff. Brown signed an executive order directing state agencies to make repairs at the dam, the nation’s tallest, a priority. The order waives some of the environmental reviews and other requirements that could slow the push to have the concrete spillway operational by November, when the next rainy season starts.