Istanbul CNN  —  After five days of confusion over Russian President Vladimir Putin’s proposal for direct talks with Ukraine , the day they were supposed to begin initially brought only more of the same: a seven-hour stakeout on the banks of the Bosphorus, an unruly scrum at the Russian consulate, and finally a decision from Ukraine’s president that may open a new chapter in this intractable conflict. The chaotic scenes that unfolded in Istanbul on Thursday set the tone for a difficult road