prep for 2.1.0 release

Author: majormoses

CHANGELOG.md

@@ -4,6 +4,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 This CHANGELOG follows the format listed [here](https://github.com/sensu-plugins/community/blob/master/HOW_WE_CHANGELOG.md)
 
 ## [Unreleased]
+
+## [2.1.0] - 2018-05-23
 ### Added
 - check-es-shard-allocation-status.rb, check-es-file-descriptors.rb, check-es-heap.rb: added `--cert-file` option which allows you to specify a ca-cert to be used to verify TLS (@vin01)
 
@@ -253,7 +255,8 @@ This CHANGELOG follows the format listed [here](https://github.com/sensu-plugins
 - initial release
 
 
-[Unreleased]: https://github.com/sensu-plugins/sensu-plugins-elasticsearch/compare/2.0.1...HEAD
+[Unreleased]: https://github.com/sensu-plugins/sensu-plugins-elasticsearch/compare/2.1.0...HEAD
+[2.1.0]: https://github.com/sensu-plugins/sensu-plugins-elasticsearch/compare/2.0.1...2.1.0
 [2.0.1]: https://github.com/sensu-plugins/sensu-plugins-elasticsearch/compare/2.0.0...2.0.1
 [2.0.0]: https://github.com/sensu-plugins/sensu-plugins-elasticsearch/compare/1.12.0...2.0.0
 [1.12.0]: https://github.com/sensu-plugins/sensu-plugins-elasticsearch/compare/1.11.1...1.12.0

lib/sensu-plugins-elasticsearch/version.rb

@@ -1,8 +1,8 @@
 module SensuPluginsElasticsearch
   module Version
     MAJOR = 2
-    MINOR = 0
-    PATCH = 1
+    MINOR = 1
+    PATCH = 0
 
     VER_STRING = [MAJOR, MINOR, PATCH].compact.join('.')
   end