draft metrics autodiscoverer
Add function to create composite processors
optimizations in NewMetricsObserver
NewMetricsObserver small optimaztions
chain timestamps and new_metrics procs in bucky_conf
clean up bucky_conf a bit
NewMetricsDispatcher: send request to core with important changes
NewMetricsDispatcher: Remove head from sent metrics
Add log line
Remove redundant code that sets up collectd rules and sends SIGHUP etc
Lock collectd.passwd before writing to it
Merge branch 'custom_metrics.autodiscover' into custom_metrics