Version bump.

Author: ashfurrow

Action.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "Action"
-  s.version      = "2.1.1"
+  s.version      = "2.2.0"
   s.summary      = "Abstracts actions to be performed in RxSwift."
   s.description  = <<-DESC
     Encapsulates an action to be performed, usually by a UIButton press.

Changelog.md

@@ -4,6 +4,12 @@ Changelog
 Current master
 --------------
 
+2.2.0
+-----
+
+- Fixes [#63](https://github.com/RxSwiftCommunity/Action/issues/63), related to the default enabled state.
+- Adds `bindTo(action:)` for non-CocoaAction.
+
 2.1.1
 -----