The cleanup of a plaza in lower Manhattan where protesters have been camped out for a month was postponed early Friday, sending cheers up from a crowd that had feared the effort was merely a pretext to evict them. Deputy Mayor Cas Holloway said the owners of the private park, Brookfield Office Properties, had put off the cleaning, scheduled for 7 a.m. More than hour beforehand, supporters of the protesters had started streaming into the park, creating a crowd of several hundred chanting people. A confrontation between police and protesters, who had vowed to stay put through civil disobedience, had...