Getty Images The Bank of England raised interest rates on Thursday, guiding to gradual rate hikes in the future. But the central bank’s hawkish tones weren’t enough to relieve the market’s worries about the U.K. political risks and economic future. The 25 basis point rate increase to 0.75% was expected, though the unanimous vote on it by the Monetary Policy Committee was not. BOE Gov. Mark Carney indicated future gradual rate hikes were to be expected in saying policy needed to “walk — not...