Sir Ed Davey has said the Liberal Democrats are getting their best response from voters “for a generation” as he launched the party’s General Election campaign in South Cambridgeshire. The party leader also criticised Chancellor Jeremy Hunt and other Conservative MPs for taking their constituents “for granted” as he spoke confidently about winning more seats on July 4. Sir Ed unveiled the Lib Dems’ new battlebus, named Yellow Hammer 1, and met a large crowd of party supporters at the launch in Whittlesford on Sunday. He was joined by the Lib Dems South Cambridgeshire Parliamentary candidate Pi…