Merge branch 'feature/fix-prometheus-metrics' of https://github.com/thinker0/heron into feature/support-custom-metrics-rules-for-prometheus-sink

* 'feature/fix-prometheus-metrics' of https://github.com/thinker0/heron:
  Add Rules
  Update kafkaOffset metrics
  Improve concurrency for needed parts. (apache#3107)
  Add documents for setting up a docker based development environment (apache#3475)
  Patch to fix cppcheck with newer glibc (apache#3471)
  Make log/sink/consume Streamlet component support setName and setNumPartitions (apache#3459)

Author: thinker0