Merge branch 'stable-2.16'

* stable-2.16:
  Precompile exclusion patterns for better performance
  Improve documentation of the metrics.exclude parameter
  Wrap MetricRegistry to handle exclusion rules
  Rename package to metricsreporterprometheus

Change-Id: I449f9df001ab2035b51ba540da36c241dcc3e370
tree: 2d7d3cd3b662e8473cd8e88349e78efd7c25ac83
  1. src/
  2. BUILD
  3. external_plugin_deps.bzl
  4. pom.xml