MINNEAPOLIS — The Minnesota Vikings have suspended special teams coordinator Mike Priefer without pay for three games this season and plan to donate $100,000 to lesbian, gay, bisexual and transgender rights groups in response to former punter Chris Kluwe’s allegations of anti-gay slurs and taunts made by Priefer. The Vikings announced the punishment Friday as part of a summary of findings by outside lawyers hired in January to investigate Kluwe’s accusations, which included a claim he was released …