Let’s end this week — and begin a long weekend of radio near-silence — with a story about the thing that makes New York great: cronyism! Eight Manhattan bus lines were slated for service changes this weekend, due to changes in traffic patterns from the planned Broadway traffic re-route. One of the lines slated for changes was the M6 bus — in fact, the M6 was going to be eliminated entirely. But that bus runs through assembly speaker Sheldon Silver’s district and serves many voters. Silver sent a letter to MTA chairman H. Dale Hemmerdinger and, the Times reports. problem solved: the M6 line stays with modest route changes. Don’t try this in Canarsie, folks — you probably won’t get the same treatment.