Use util.log for logging in acyclic phase
Use util.log for logging in acyclic phase

9n/dagre,9n/dagre,abduld/dagre,cpettitt/dagre,abduld/dagre,shelsonjava/dagre,9n/dagre,kdawes/dagre,tylingsoft/dagre-layout,cpettitt/dagre,kdawes/dagre,lmcorbo/dagre,GerHobbelt/dagre,witcxc/dagre,kdawes/dagre,GerHobbelt/dagre,abduld/dagre,rwl/dagre,witcxc/dagre,lmcorbo/dagre,lmcorbo/dagre,cpettitt/dagre,shelsonjava/dagre,GerHobbelt/dagre,shelsonjava/dagre,tylingsoft/dagre-layout