Make the spout's Storm Metrics' time bucket size configurable via
TridentKafkaConfig. Leave the default time bucket size at 60 seconds.
Update pom.xml

Revert custom changes
Merge pull request #22 from dschiavu/configurable-metrics-emit-interval

Make the spout's Storm metrics time bucket size configurable via TridentKafkaConfig. Leave the default time bucket size at 60 seconds.
use metricsTimeBucketSizeInSecs consistently
Added support for reading message key
fixed tests