Features:
- Improved error handling on list download
- Fine grained locking on list update
- improved selection of external resolver: weighted random based on last error status
Bugfix:
- IP6 upstream with port can be configured now (thanks @timeforcode)
Misc
- Docker-compose: example configuration for Grafana and Prometheus (thanks @lakestonelabs), setting default values (thanks @izzeho)
- Moved some content from README to Wiki
- Tests rewrite: Use Ginkgo as BDD test framework
- Updated dependencies