Fix: NPE in KafkaQueueSizeGauge
FIx: write time meter was fixed in HBaseStorage
Merge pull request #101 from VasilyKolpakov/fix/NPE_in_KafkaQueueSizeGauge

Fix: NPE in KafkaQueueSizeGauge
Merge pull request #104 from VasilyKolpakov/fix/hbase_storage_metric_fix

FIx: write time meter was fixed in HBaseStorage
Feature: HBaseStorage total delay time metric
Feature: load test tool rewrite
Feature: UniqueId: metric renaming; cache additions metric was added