Merge pull request filecoin-project#1294 from natewalck/more-opencens…

…us-metrics

More opencensus metrics

Merge pull request filecoin-project#1293 from natewalck/opencensus-pr…

…ometheus

Swap to opencensus for publishing data to prometheus

Release v0.2.8

Merge pull request filecoin-project#1185 from filecoin-project/fork/s…

…nowball

WIP, fork, fix slashing power calc

Release v0.2.6

Release v0.2.5

Release v0.2.2

Release v0.2.1

Release v0.1.6

Release v0.1.5