Removed all image layers other than the last.
Removed all image layers other than the last.

pblittle/docker-logstash,ContinuumIO/docker-logstash,ContinuumIO/docker-logstash,awyrough/docker-logstash,TaylorMonacelli/docker-logstash-pblittle,eternnoir/docker-logstash,dant3/docker-logstash