Update release notes for 1.12.0.1 (#354)

* Update version and release notes

* Create separate release notes for 1.12.0.1

* Revert title for 1.12.0.0 release notes

Author: qreshi

build.gradle

@@ -130,7 +130,7 @@ ext {
 }
 
 group = "com.amazon.opendistroforelasticsearch"
-version = "${opendistroVersion}.0"
+version = "${opendistroVersion}.1"
 
 if (isSnapshot) {
     version += "-SNAPSHOT"

release-notes/opendistro-for-elasticsearch-index-management.release-notes-1.12.0.0.md

@@ -19,4 +19,4 @@ Compatible with Elasticsearch 7.10.0
 
 ### Bug fixes
 
-* Correctly handles remote transport exceptions in rollover ([#325](https://github.com/opendistro-for-elasticsearch/index-management/pull/325)) 
+* Correctly handles remote transport exceptions in rollover ([#325](https://github.com/opendistro-for-elasticsearch/index-management/pull/325))

release-notes/opendistro-for-elasticsearch-index-management.release-notes-1.12.0.1.md

@@ -0,0 +1,7 @@
+## Version 1.12.0.1 2020-12-09
+
+Compatible with Elasticsearch 7.10.0
+
+### Bug fixes
+
+* Accept request parameters in RestGetRollupAction and fix flakey tests ([#353](https://github.com/opendistro-for-elasticsearch/index-management/pull/353))