Cut v2.19.2 (#7464)

Signed-off-by: NGanesh Vernekar <cs15btech11018@iith.ac.in>

CHANGELOG.md

+## 2.19.2 / 2020-06-26
+
+* [BUGFIX] Remote Write: Fix panic when reloading config with modified queue parameters. #7452
+
 ## 2.19.1 / 2020-06-18
 
 * [BUGFIX] TSDB: Fix m-map file truncation leading to unsequential files. #7414

VERSION

-2.19.1
+2.19.2