release notes for 0.93.0 (#3316)
release notes for 0.93.0 (#3316)

* release notes for 0.93.0

* elaborate release notes

EvilMcJerkface/atlasdb,palantir/atlasdb,palantir/atlasdb,EvilMcJerkface/atlasdb,EvilMcJerkface/atlasdb,palantir/atlasdb