* Add overflow checks
* More fixes
* Typos
* Merge branch 'master' into fix-overflow
* One more regression test
* Merge branch 'fix-overflow' of github.com:prysmaticlabs/prysm into fix-overflow
* Gazelle
* Merge branch 'master' into fix-overflow
* Nishant's feedback
* Merge refs/heads/master into fix-overflow