Testimony from bar and club owners and workers has convinced Ward 1 Councilmember Jim Graham to see the error of his ways and loosen penalties for bars found serving to minors. Marc Fisher writes that the D.C. Council took up his proposal at the December 16 meeting after tentatively approving the measure in November. That would mean a drop from a zero-tolerance penalty ($1,000 fine plus two-day liquor license suspension) for first-time offenses to a…