Update release notes for fixed Snak interface

And also add the missing release date for 9.6.0 while we’re at it.

Merge pull request #841 from wmde/update_data_values

Update data-values to 3.0 and prepare for release

Update release date 9.5.0 (#827)

* Update RELEASE-NOTES.md

* Updated release notes 9.5.1

Co-authored-by: Tobias Andersson <tobias.andersson@wikimedia.de>

Branch alias to dev-master: 9.6.x-dev

Date relnotes for 9.4.0

RELNOTES finalize 9.3.0

RELNOTES ## Version 9.2.0 (2020-01-24)

Add release note for 9.1.0 about preventing redirecting an entity to …

…itself

Merge pull request #804 from wmde/clearablesht

Fix earlier ClearbaleEntity revert

9.0.0 release