lumberjack fields... if role is an array, join it into a space separated string
syntax lumberjack.config.json-filepiece.erb
typo lumberjack.config.json-filepiece.erb
reverting lumberjack.config.json-filepiece.erb  and converting fields[role] to a space separated string
protecting lumberjack from field values that are arrays
lumberjack.config.json-filepiece.erb syntax
push the field 'name' in if we don't set it explicitly
change field['type'] to field['watcher'] to reduce the overuse of 'type'