remove weavedns container on `weave reset` (and some cosmetics)
remove weavedns container on `weave reset`
(and some cosmetics)

Fixes #171

Lawouach/weave,squaremo/weave,weaveworks/weave,2opremio/weave,paladin74/weave,BWITS/weave,kidaa/weave,dpw/weave,kidaa/weave,kidaa/weave,aaam/weave,awanke/weave,aaam/weave,bboreham/weave,Lawouach/weave,ycaihua/weave,BWITS/weave,Lawouach/weave,19hz/weave,aaam/weave,cgvarela/weave,beni55/weave,weaveworks/weave,n054/weave,philipz/weave,cgvarela/weave,errordeveloper/weave,squaremo/weave,achanda/weave,dpw/weave,tomwilkie/weave,paulbellamy/weave,errordeveloper/weave,Lawouach/weave,paulbellamy/weave,beni55/weave,2opremio/weave,aaam/weave,awanke/weave,19hz/weave,ycaihua/weave,tomwilkie/weave,narry/weave,paladin74/weave,rade/weave,squaremo/weave,BWITS/weave,tomwilkie/weave,awh/weave,bboreham/weave,beni55/weave,awanke/weave,awanke/weave,cgvarela/weave,ycaihua/weave,n054/weave,narry/weave,inercia/weave,OnePaaS/weave,paladin74/weave,inercia/weave,awh/weave,2opremio/weave,achanda/weave,inercia/weave,19hz/weave,paulbellamy/weave,OnePaaS/weave,achanda/weave,tomwilkie/weave,weaveworks/weave,philipz/weave,inercia/weave,OnePaaS/weave,paladin74/weave,bboreham/weave,squaremo/weave,inercia/weave,narry/weave,rade/weave,philipz/weave,kidaa/weave,awh/weave,errordeveloper/weave,2opremio/weave,beni55/weave,squaremo/weave,errordeveloper/weave,philipz/weave,cgvarela/weave,awh/weave,tomwilkie/weave,bboreham/weave,n054/weave,errordeveloper/weave,2opremio/weave,achanda/weave,narry/weave,rade/weave,OnePaaS/weave,paulbellamy/weave,ycaihua/weave,beni55/weave,awanke/weave,BWITS/weave,19hz/weave,narry/weave,aaam/weave,bboreham/weave,n054/weave,cgvarela/weave,paladin74/weave,dpw/weave,rade/weave,kidaa/weave,rade/weave,philipz/weave,weaveworks/weave,dpw/weave,achanda/weave,OnePaaS/weave,ycaihua/weave,awh/weave,n054/weave,BWITS/weave,dpw/weave