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.
The current code has a Pid for curr_request if run from update_nodes, but it matches on a Monitor_Ref in the 'DOWN' clause. If update nodes ever crashes, you will crash the gen_server since it won't match this clause.