Update changelog for 2.0

CHANGELOG.md

@@ -1,5 +1,28 @@
 ## Change Log
 
+### 2.0 (2019/12/06 06:25 +00:00)
+- [848e48b](https://github.com/thelastpickle/cassandra-reaper/commit/848e48bec6b2afe42cd9857abe1533e7d9f776d7) Add "force" flag to cluster delete REST endpoint, allowing registered clusters with schedules and repairs runs to be forcibly deleted. (@michaelsembwever)
+- [e13b34d](https://github.com/thelastpickle/cassandra-reaper/commit/e13b34d77f6ec5789e311bd287edb602dca8198f) Remove leader election in Reaper for schema migrations and instead rely on the cassandra-migration lib built in consensus. (@adejanovski)
+- [da5a058](https://github.com/thelastpickle/cassandra-reaper/commit/da5a05817f7ac467a862b3679dc8e3f99ec59325) Display available repair metrics in the UI (@adejanovski)
+- [2243c73](https://github.com/thelastpickle/cassandra-reaper/commit/2243c733140a04f65c560c7e9f531c1c56d350e2) Make docker image run as non-root (@mimarpe)
+- [edfd5a9](https://github.com/thelastpickle/cassandra-reaper/commit/edfd5a9ce9c38162cae864f17e83f64368ab2d96) Added option REAPER_AUTH_ENABLED. (@andrejvanderzee)
+- [9bb2878](https://github.com/thelastpickle/cassandra-reaper/commit/9bb2878a3626c62ea58705ff3d6e32072ed1ad85) Add switchable UI themes (@adejanovski)
+aa833d8cd69e27655155e40bfe971e13a3cc4e47) support use of Postgresql as storage backend for multiple reapers (@Saleil-Bhat)
+- [0591b38](https://github.com/thelastpickle/cassandra-reaper/commit/0591b38d3166a392643d854942d308ec5fd021f5) Make stream tracking work with 4.0 (@rzvoncek)
+- [b293160](https://github.com/thelastpickle/cassandra-reaper/commit/b2931600ae09606d11227a8f61dbacf2d41515bf) Add Cassandra storage support for Diagnostic Events (@michaelsembwever)
+- [e65a47e](https://github.com/thelastpickle/cassandra-reaper/commit/e65a47e42ec88f9c55f560a3123048d8a02b8b72) Add JMX and REST support for diagnostic events (@spodkowinski)
+- [a04e7cf](https://github.com/thelastpickle/cassandra-reaper/commit/a04e7cf4823d6d87977bcbbaa751268d4cf2dbb7) Fix NPE upon upgrade when last contact is null on existing clusters (@adejanovski)
+- [22c7cfe](https://github.com/thelastpickle/cassandra-reaper/commit/22c7cfef2fbcce12bbb7468ab6752096dae10cbe) Self register clusters in sidecar mode since the nodes are collocated with Reaper. (@adejanovski)
+- [a5fdac2](https://github.com/thelastpickle/cassandra-reaper/commit/a5fdac292e955da425b00d62853d667c2f7b6586) Simplify how RepairManager aborts/postpones segments, fixing how leader election happens and when and how it is correctly released. (@michaelsembwever)
+- [f01e914](https://github.com/thelastpickle/cassandra-reaper/commit/f01e914ff1fc8295da1e6dcce348effc1cdd4ee6) Implement the sidecar mode (@adejanovski)
+- [f798244](https://github.com/thelastpickle/cassandra-reaper/commit/f7982449b2dfdf4110041dc8c58bb89e5ffcee5f) Handle new messaging service verbs for dropped reads in Cassandra 4.0 (@michaelsembwever)
+- [fed72fe](https://github.com/thelastpickle/cassandra-reaper/commit/fed72fee191496c0e883c23dc603dd6d6e3c388c) Request remote nodes metrics only if there are several reapers running (@adejanovski)
+- [644553a](https://github.com/thelastpickle/cassandra-reaper/commit/644553a762e6abb4eb32e7e8fdcf58da324ae5c2) Improves the preventation of multiple scheduled repair runs starting at the same time. (@michaelsembwever)
+- [65909e3](https://github.com/thelastpickle/cassandra-reaper/commit/65909e32287b3b6f6f37bb10adacd06e2db79685) The purge and abort segment REST endpoints are actions, not idempotent reads, so should be POST instead of GET method requests. (@michaelsembwever)
+- [e686c2f](https://github.com/thelastpickle/cassandra-reaper/commit/e686c2f22866efb4ee9ea0d7a4001bcc0ecd0190) Don't start a segment repair if it is already started, running, or done. (@michaelsembwever)
+- [d7d045f](https://github.com/thelastpickle/cassandra-reaper/commit/d7d045f7eaa4e214584c4ec8082265ba45c36d9b) Add automated retries when connecting to the storage backend (@adejanovski)
+- [f6c451b](https://github.com/thelastpickle/cassandra-reaper/commit/f6c451baa7da321319987ea3e46bee7a5858bb76) Encapsulate jmx interactions in a proxy class (@adejanovski)
+
 ### 1.4.8 (2019/11/15 09:05 +00:00)
 - [3bffd87](https://github.com/thelastpickle/cassandra-reaper/commit/3bffd8717b6731c7264ad2f9be65764467544cff) Fix bug in UI where only three datacenters would ever be displayed even if there were more (@ossarga)
 - [e83c2be](https://github.com/thelastpickle/cassandra-reaper/commit/e83c2be560044d6cfc500cb6724f3324d8bf487d) ninja-fix: correct output when searching for cassandra-reaper installation (@michaelsembwever)