Update notes for submitted changes
* [error prone] fix ReferenceEquality warning in CommitBuilder
* [error prone] suppress NonAtomicVolatileUpdate warning in SimpleLruCache
* [error prone] fix ReferenceEquality warning in CommitGraphPane#authorFor
* [error prone] fix ReferenceEquality warning in RevWalk#isMergedInto
* [error prone] fix ReferenceEquality warning in RefUpdate#updateImpl
* [error prone] fix ReferenceEquality warning in static equals methods
* [error prone] suppress AmbiguousMethodReference in AnyObjectId