By Pratima Desai LONDON (Reuters) – The London Metal Exchange’s (LME) benchmark nickel contract slumped to its daily limit for the second day in a row on Thursday and traders said it would probably continue to slide until it reached parity with the price of the metal in China. As on Wednesday, the exchange’s electronic system LMEselect was hit by technical glitches with some traders unable to enter nickel orders ahead of the open at 0800 GMT. To iron out the disruption, electronic trading started at 0845 GMT instead. “This is unreal,” said one metals trader, questioning how the LME could allow…