Release version 2.1.0

Author: ajalt

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Changelog
 
 ## [Unreleased]
+
+## [2.1.0] - 2019-05-23 
 ### Added
 - Ability to prevent [rewrapping individual paragraphs](https://ajalt.github.io/clikt/documenting/#preventing-rewrapping) in help output.
 - Added parameter `required` to `Option.multiple()` to require at least one instance of the option on the command line.

gradle.properties

@@ -1,2 +1,2 @@
 GROUP=com.github.ajalt
-VERSION_NAME=2.0.0
+VERSION_NAME=2.1.0