gRPC 1.23.0 and protobuf 3.9.1

Merge pull request #48 from sideeffffect/sun.management

fixes https://github.com/avast/metrics/issues/47

A new metric for count of currently running gRPC calls

Merge pull request #46 from avast/gRPCCurrentCalls

Current gRPC calls metric

2.6.3 Release

• Fixed multi timer implementation not closing all contexts.

gRPC 1.22.1

2.6.2

gRPC 1.22.1

gRPC 1.22.0

2.6.1

gRPC 1.22.0

Cross-built to Scala 2.13

Prepare for Scala 2.13 cross-build (#44)

* Prepare for Scala 2.13 cross-build
* Update dependencies
* Set crossScalaVersions to Nil on root project (recommended in SBT docs)

Sample-rate not sent for StatsD gauges

Reason - current version of statsite drops gauges with sample-rate specified (StatsD just ignores the sample-rate specified).

2.5.3 Released

• Fixed statsd histogram implementation

2.5.2 Released

• Fixed Statsd meter auto register initialization

Release 2.5.1

• Added builder for statsd metrics
• Deprecated constructors method which does not include scheduler in parameters as it will leak threads because of default scheduler creation.