Shoreline Unified School District has hired an interim superintendent with 20 years of education experience, including stints as a teacher, administrator and policy maker. A Pennsylvania native, Matt Dunkle comes to the district after serving for three years as superintendent of Forestville Union, a rural district in Sonoma County. Before that, he was principal of El Molino High School in Forestville for seven years. “I’ve covered quite a few different things during my career in…