Fix #53 metrics should be at stream level
Merge remote-tracking branch 'inmobi/develop' into timestamp-metrics
Add metrics to get timestamp of last processed file at service/stream level
Add env file to add pid directory
Add test to check for last processed file timestamp metics
Fix #57
Move getDateFomCollectorFileName method to CalendarHelper util class
Resolve merge conflicts
Merge remote-tracking branch 'inmobi/develop' into audit-pid
Merge pull request #54 from AnnapurnaVemuri/timestamp-metrics

Fix #53 metrics should be at stream level
Merge pull request #58 from AnnapurnaVemuri/audit-pid

Add pid file for audit feeder
Resolved merge conflicts
Create two classes DailyRollupService and HourlyRollupService for two different services