Remove envconsul from Dockerfile
Remove envconsul from Dockerfile

The open source version of Unleash shouldn't depend on envconsul,
since that's an internal operations detail at FINN.no. Instead, we
accept configuration from environment variables passed through from
the "docker run" command, or via Marathon/Mesos.

Unleash/unleash,finn-no/unleash,finn-no/unleash,Unleash/unleash,Unleash/unleash,Unleash/unleash,finn-no/unleash