Use consul snapshot (new in 0.7) to drive our backups
Use consul snapshot (new in 0.7) to drive our backups

Fixes #233

Nubisproject/nubis-consul,gozer/nubis-consul,Nubisproject/nubis-consul,tinnightcap/nubis-consul,limed/nubis-consul,Nubisproject/nubis-consul,gozer/nubis-consul,gozer/nubis-consul,tinnightcap/nubis-consul,limed/nubis-consul