A year ago, Hamilton stitched together a tent big enough for a half-dozen African- American council members – and three white South Siders – to elect him Common Council president in an upset that toppled incumbent Ald. Mike Murphy, a council veteran. But more than once since then, their tent has looked ready to blow away. This past summer, the council’s public safety committee, headed by Hamilton’s pick for chair, tough-on-crime Ald. Bob Donovan, fired off a draft plan calling for more cops, more jail and “boot camps” for potential juvenile offenders.