docs: release notes and unhide fields for locality based balancing.#579

Merged

htuch merged 7 commits intoenvoyproxy:masterfrom

htuch:locality-release-notes

Apr 10, 2018

Commits on Mar 23, 2018

Commits on Mar 29, 2018

Merge remote-tracking branch 'upstream/master' into locality-release-notes
htuch
committed
Added docs to point out this is not compatible with subsets.
htuch
committed

Commits on Apr 6, 2018

Commits on Apr 9, 2018

Merge remote-tracking branch 'upstream/master' into locality-release-notes
htuch
committed