Australian: THE long battle over the proposed Tasmanian pulp mill may soon be over, with proponent Gunns unable to give an assurance that the controversial project will proceed. In a marked change of tone, the timber company last night told the Australian Securities Exchange that it was no longer certain that it could obtain sufficient finance or a joint venture partner. It also told the market it could not meet a deadline for the start of construction of November 30, set by the Tasmanian …