Maine has always been proud of the commodities it claims as homegrown, among them Stephen King, L.L. Bean, lobster and a host of political icons including Edmund Muskie, George Mitchell and Olympia Snowe. But no matter what happens in the election this fall to replace the retiring Snowe, Mainers won’t get a native to represent the state. All six candidates are transplants from other states or, as folks in Maine say, “from away.” Out-of-staters running for office isn’t anything new, in Maine or elsewhere. But it appears to be the first time in at least 130 years that all the Maine Senate candidates are transplants from other states. And considering the sheer number of candidates, that’s unusual. The candidates include a Republican, a Democrat and four independents.