Adding plugin to record aggregate metrics.
[pagerduty] fixed custom description, increased timeout, fixed indentation
[pagerduty] increased timeout to 10 seconds, because the handler uses occurrence filtering
Merge pull request #297 from portertech/pagerduty

[pagerduty] fixed custom description, increased timeout, fixed indentation
Fixing syntax errors and exit code.
Changing verbose to debug.
Removing extraneous flags.
Ignoring case indentation.
Merge pull request #299 from nstielau/aggregate_metrics

Aggregate metrics