TS-938 - Don't merge

Adding the config and a gen_server to handle the c* nodes. But this uses elysium 0.1.7 so the files changed are really misleading.

Also the query seems to work, but it is not currently being used.
Only manual admin requests would call this. It doesn't need to be a gen_cast since you do the update in a background process. It could return 'started' | 'already_running'.