Zahary Karadjov f5e9b9a922 Allow running local nodes without attached validators
The number of user nodes is now specified with `USER_NODES`.

To make the instructions more stable, the "numeric id" of the user
nodes will be starting from 0 (so you can always use `run_node.sh 0`
to start a user node).

If you specify a node index above the total number of nodes, you'll
launch a node without any validators attached (this is useful for
testing the sync for example).
2019-11-11 23:29:36 +00:00
..
2019-10-23 20:57:59 +02:00