* attestationutil.AttestingIndices: Minor improvement on indices array allocation
* Merge branch 'master' of github.com:prysmaticlabs/prysm into HEAD
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1
* Merge refs/heads/master into memory1