BUG/MINOR: contrib/prometheus-exporter: Return the time averages in seconds

The metrics QTIME, CTIME, RTIME and TTIME are now returned in seconds using a
float representation instead of in milliseconds. So these metrics are now
consistent with their announced type and respect Prometheus naming conventions.

This patch fixes the issue #288. It may be backported to 2.0. If so, the
previous patch, introducing the support for float fields in stats is mantatory
and should be backported first.
1 file changed