master: Add timeouts to all polls and callbacks.

master/toolchain: return host ip on node drop in webhook

Restore state from backup when restarting program

Fix encoding issues

Interpolate django supervisor variables

Register datawatch before setting up path

Change authorization key

Include authorization token in request to callback

Define looping task to check for supervisor health

Raise error if supervisor_conf is not provided

Handle case when file is replaced

Add file watcher to listen for config changes

Fix frontend bug

Add start, restart and stop buttons to control all processes

Implement start, stop and restart all