KAZOO-2607: create local cache process for trunkstore
KAZOO-2607: create flush maint commands
KAZOO-2607: specs and formatting
KAZOO-2607: fetch/store to local cache
KAZOO-2607: erase from local cache
Merge pull request #486 from 2600hz/KAZOO-2607

Kazoo 2607 - flush trunkstore on changes