Is this a BUG REPORT or FEATURE REQUEST? (choose one):

FEATURE REQUEST:

I would like to see possibility to run tendermint in a Seed Mode without having application attached to it.
Meaning: using seed node for pure node discovery.
The current project requires to have data (using BigchainDB with tendermint) to be stored only on the network participants and to be able to have node discovery.
Currently, if you run seed node without an app, it's constantly erroring and doesn't appear to be working.
I would like to have possibility to enable node discovery without providing an ABCI application along with it.

Tendermint version : 0.19.2

ABCI app : BigchainDB

Environment: Docker with Ubuntu

What happened: Errors connecting to the app

What you expected to happen: Seed node running successfully

How to reproduce it (as minimally and precisely as possible): enable seed_mode and don't point it to any app

Logs (you can paste a part showing an error or attach the whole file):

E[06-05|10:21:26.084] abci.socketClient failed to connect to tcp://127.0.0.1:46658.  Retrying... module=abci-client connection=query