(Reuters) - 1/ELECTION NIGHT FEVERMore than three years after Britons narrowly voted to leave the European Union, the Dec. 12 general election will effectively offer them another vote on how they want Brexit to proceed and if they still think it should go ahead.Opinion polls showing the Conservative Party with a big lead have fuelled a scintillating pound rally and 'short' sterling positions have been cut to seven-month lows; the belief is the Conservatives will quickly implement Brexit and end..