Don't fail in launch-router if weave2 already exists
Don't fail in launch-router if weave2 already exists

And delete weave2 on stop-router.

squaremo/weave,tomwilkie/weave,n054/weave,n054/weave,awh/weave,aaam/weave,tomwilkie/weave,paulbellamy/weave,n054/weave,aaam/weave,paulbellamy/weave,tomwilkie/weave,dpw/weave,aaam/weave,bboreham/weave,weaveworks/weave,aaam/weave,n054/weave,squaremo/weave,aaam/weave,bboreham/weave,rade/weave,dpw/weave,dpw/weave,rade/weave,squaremo/weave,bboreham/weave,dpw/weave,tomwilkie/weave,tomwilkie/weave,rade/weave,awh/weave,rade/weave,awh/weave,squaremo/weave,n054/weave,awh/weave,rade/weave,paulbellamy/weave,weaveworks/weave,weaveworks/weave,awh/weave,weaveworks/weave,squaremo/weave,paulbellamy/weave,bboreham/weave,bboreham/weave,dpw/weave