WASILLA — Responding to news reports about then-Wasilla Mayor Sarah Palin asking a librarian how she would feel about banning books, a San Francisco man has donated two children’s books dealing with homosexuality to the Wasilla Library. Mike Petrelis, a 49-year-old who files Freedom of Information requests for a living, said he was aghast to read reports of Palin’s 1996 inquiry about banning certain books at Wasilla’s library. The news — old news in the Mat-Su Valley, but new in the Lower 48 — prompted Petrelis to send to Wasilla “Heather Has Two Mommies” and “Daddy’s Roommate,” both children’s books...