rename resolution to bucket_width as sugested by octo.
follow renaming to bucket width in the statsd module.
latency: make the size of the histogramm configurable.
latency: add no_buckets to the reset functionality
remove bucket_width and no_buckets from the reset function.
Latency counters: put in name for debugging purposes, add setting of pointer to histogram.
Latency counters: add autofocus routines