* use faster hash proto
* Merge branch 'master' into faster-att-pool
* gaz
* Merge branch 'faster-att-pool' of github.com:prysmaticlabs/prysm into faster-att-pool
* nil checks and failing tests
* Merge refs/heads/master into faster-att-pool
* Merge refs/heads/master into faster-att-pool
* Merge refs/heads/master into faster-att-pool
* Merge refs/heads/master into faster-att-pool
* Merge refs/heads/master into faster-att-pool
* Fix
* Merge branch 'faster-att-pool' of github.com:prysmaticlabs/prysm into faster-att-pool
* Fix tests