fix WorkerSpec and include SupervisionStrategy in Router
minor refactor in Metrik
Refactoring Config to Settings
Minor refactor
remove empty function
Added test cases for TimeWindow. TimeWindow asynchrony refactored
Merge with bucketLogic
merge Settings for Config trait
run test in parallel true
fix update executionTimestamp
do nothing when a collection is empty
Make it run
Fix testcase
fix window chain to run windows sequentially. more log
fix merge
add counters, refator ALL
refactor counters, fix test
Refactor to use Metric in every place instead of metric name string
store mtype in MetaStore. Buckets refactored to generic type
add cassandra logic to BucketStore