Optional purge / delete about consulator

[lewispeckover]

Hmm, I'll try and make it clearer that 'import' it removes things by default. It is intended to sync a tree. Perhaps I should have named it 'sync'. 😄

For your use case, you could use consul kv import (consul >=0.7.3) to achieve a non-destructive import. consulator dump /etc/consul | consul kv import -

But I do think it's a good idea, I'll add a switch for that shortly.